Manufacturer of UNS S31254 Hex Nuts and Stainless Steel Din 1.4547 Threaded Rod in M1.6~M12 metric sizes in India
Great Steel & Metals is a leading SMO 254 Fasteners Manufacturer. We produce all kinds of bolts, nuts, studs and fasteners. These accessories need to be stronger, harder and have specific mechanical properties for use in specific applications. Therefore different material grades are used. The 254 SMO Bolts are pitting corrosion resistant and crevice corrosion resistant.

254 SMO Bolts

UNS S31254 Hex Nuts

SMO 254 Stainless Steel Fasteners
Check Standard Specification & Price List Of ASTM B479 Hex Bolts And UNS S31254 Fasteners Ex Mumbai
They are very strong and tough. The added toughness makes it harder to machine. However, with good lubrication, sharp tools and overpowered machines, machining is possible. The UNS S31254 Hex Nuts are used with hex bolts in structurally stronger applications. The material’s corrosion resistance makes it applicable in high chloride ion concentrations such as in the sea waters. The ASTM A479 UNS S31254 Threaded Rod has high resistant to stress corrosion cracking as well. The material is electroslagremelted which provides it the extra resistance to pitting and crevice corrosions. Our DIN 1.4547 Screws are of high quality and are produced through the standard procedure. We test our products before supply to match the international standards. These products could be used in seawater and high corrosive media as well. As the electroslagremelting process provides cleaner material, there is no segregation. This is also useful in obtaining the corrosion resistance. Our SMO 254 Washers are durable and have high wear and tear properties. They could be used along with the bolts and nuts of the same grade material. We offer our customers only the best. You can get a full product list and price list by contacting us.
Table of contents
- Specification of UNS S31254 Hex Nuts
- Mechanical Properties of 254 SMO Bolts
- Chemical Composition of DIN 1.4547 Nuts
- Physical Composition of SMO 254 Nuts
- Equivalent Grade of SMO UNS S31254 Shoulder Nuts
- SMO 254 Stainless Steel Fasteners Types
- Size in Inches of ASTM B479 254 SMO Bolts
- Torque Chart of ASTM B479 254 SMO Coupling Nut
- Dimension of Stainless Steel UNS S31254 Socket Head Cap Screw
Specification of UNS S31254 Hex Nuts
View standard specification of UNS S31254 Hex Nuts & SMO 254 Stainless Steel Fasteners, Buy Coated & Polished Din 1.4547 Threaded Rod at lowest price in Mumbai, India
SMO Werkstoff Nr. 1.4547 bolting materials Surface Coating: |
Manufacturer of all surface finishes in SMO 254 Nut including Zinc, Galvanised, Sherardized, Electroless Nickel, Dacromet, Geomet & PTFE. |
---|---|
Stainless Steel Grade 254 Bolts types | SMO 254 Hex Bolts, Flange Bolts, Hex Head Bolts, Lag Bolts, Square Bolts, Eye Bolts, U Bolts, T Bolts, Counter sunk Bolts etc. |
A479 SMO 254 Nut types | SMO 254 Hex Head Nut, Eye Nut, Dome Nut, Wing Nut, T Nut, Panel Nut, Lock Nut, Coupling Nut, Square Nut, Acorn Nut etc. |
SMO 254 Screws types | SMO 254 Hex Head Cap Screws, Socket Set Screws, Anchor Screws, Blind Rivet, Socket Head Screws, Concrete Screws, Shoulder Screws, Panel Screws, Threaded Screws, Machine Screws etc. |
ASTM A479 SMO Washer types | SMO 254 Machine Washers, Flat Washer, Star Washers, Sealing Washer, Lock Washer, Split Washer in India |
SS 254 SMO Fasteners Packing: | IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request |
Ready stock available metric 254 SMO Bolts |
|
SMO 254 Fasteners Material Specification | ASTM A479 SMO Bolt/nut, UNS S31254 Bolts |
ASTM A479 SMO Fasteners / Bolts Standard | DIN, UNI, ISO, JIS, GB, IS, BS, ASME, ANSI, ASTM and all International Standards |
254 SMO Fasteners/ Bolts Size | M2, M2.5, M3, M4, M5, M6, M8, M10, M12, M14, M16, M20, M24, M30, M36 to M160 |
Length of 254 SMO Bolt | 3 mm to 200 mm |
SMO UNS S31254 Bolts, Studs Threads: | METRIC, BSW, BSF, UNC, UNF or as required |
DIN 1.4547 Nuts Standard: | ANSI – American National Standards Institute
DIN: 931, 933, 934, 970 UTS – Unified Thread Standard : UNC, UNF, UNEF, UNS, NPT, NPTF ISO – International Organization for Standardization : ISO 4032, ISO 4033, JIS standards |
Source of raw materials to manufacture SMO UNS S31254 Shoulder Nuts | Tata Steel, JSPL, RINL, Usha Martin, Dhamm Steel, Mukund Steel etc. |
SCOPE |
|
SMO 254 Stainless Steel Fasteners In Form of: | Hex, Square, Round, Threading as per Gauge Etc. |
Head drive: | Phillips, Slotted, Phillips/Slot, Six-Lobe, etc |
SMO 254 Hex Bolt Thread | Metric Coarse |
ASTM A479 SMO bolting Test Certificate: | Manufacturer Test Certificate as per EN 10204 / 3.1 |
254 SMO Bolts finishing: | Zinc (yellow, white, blue, black), black oxide, Geometry, Dacroment, anodizing, nickel plated, plated zinc-nickel, Stainless steel: Passivated Self-Colour, Hot Dip Galvanised (HDG), Bright Zinc Plated (BZP), Sherardized, Mechanically Applied coating and some special one like DACROMET |
Production process | M2-M24: Cold Froging, hot forging M24-M100, machining and CNC for Customized connecting element |
Mechanical Properties of 254 SMO Bolts
Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
8.0 g/cm3 | 1320-1390 ℃ | 300 | 650 | 35 % |
Chemical Composition of DIN 1.4547 Nuts
SMO 254 | Ni | C | Mo | Mn | Si | Fe | Cu | S | P | Cr |
17.5 – 18.5 | 0.02 max | 6 – 6.5 | 1 max | 0.8 max | – | 0.5 – 1 | 0.01 max | 0.03 max | 19.5 – 20.5 |
Physical Composition of SMO 254 Nuts
Properties
|
Metric
|
Imperial
|
---|---|---|
Density
|
8 g/cm3
|
0.289 lb/in3
|
Equivalent Grade of SMO UNS S31254 Shoulder Nuts
STANDARD | UNS | WERKSTOFF NR. | AFNOR | EN | JIS | SIS | GOST |
SMO 254 | S31254 | 1.4547 | Z1 CNDU 20.18.06Az | X1CrNiMoCuN20-18-7 | – | 2378 | – |
SMO 254 Stainless Steel Fasteners Types
ASTM A479 SMO Bolts And Set Screws

SMO 254 Hex Bolts

ASTM A479 SMO Hex Set Screws

254 SMO Carriage Bolts

DIN 1.4547 Roofing Bolts
254 SMO Socket Head Screws

ASTM A479 SMO Socket Head Cap Screws

SMO 254 Low Head Socket Head Cap Screws

254 SMO Button Head Sockets

DIN 1.4547 Countersunk Sockets

SMO UNS S31254 Socket Set Screws

ASTM A479 254 SMO Socket Shoulder Screws

SMO Werkstoff Nr. 1.4547 Metric Socket Head Cap Screws

Stainless Steel Grade 254 UNC Socket Head Cap Screws
DIN 1.4547 Nuts

SMO 254 T Nuts

ASTM A479 SMO Wing Nuts

254 SMO Lock Nuts

DIN 1.4547 Dome Nuts (Acorn)

SMO UNS S31254 Hex Nuts

ASTM A479 254 SMO Lug Nuts

SMO Werkstoff Nr. 1.4547 Square Nuts

Stainless Steel Grade 254 Flange Nuts
SMO UNS S31254 Washers

DIN 1.4547 Flat Washers

SMO 254 Penny Washers

ASTM A479 SMO Spring Washers

ASTM A479 254 SMO Toothed/ Serrated Lock Washers
ASTM A479 254 SMO Threaded Rod

SMO UNS S31254 Metric Threaded Rod

Stainless Steel Grade 254 UNC Threaded Rod

ASTM A479 SMO UNF Threaded Rod

SMO 254 BSW / BSF Threaded Rod
SMO Werkstoff Nr. 1.4547 Machine Screws

SMO 254 Pan Head Pozi

ASTM A479 254 SMO Pan Head Phillips

A479 SMO 254 Pan Head Slotted

ASME SA 479 254 SMO Pan Head Torx
Stainless Steel Grade 254 Self Tapping Screws

ASTM A479 254 SMO Pan Head Pozi Self Tapping Screws

SMO 254 Pan Head Slot Self Tapping Screws

ASTM A479 SMO Countersunk Head Pozi Self Tapping Screws

DIN 1.4547 Countersunk Head Slotted Self Tapping Screws
A479 SMO 254 Self Drilling Screws

SMO 254 Z Purlin

DIN 1.4547 Stitcher

ASTM A479 SMO Hot Rolled Rail

254 SMO Timber Fixing
ASME SA 479 254 SMO Coach Screws, Hex Head

SMO 254 Coach Screw

DIN 1.4547 Hex Head Coach Screw

ASTM A479 SMO DIN 571 Coach Screw

SMO UNS S31254 M10 Coach Screw
UNS S31254 SMO Security Fasteners

ASTM A479 SMO 2-Hole

SMO 254 6-Lobe Pin

254 SMO Barrel Nut

SMO UNS S31254 Self Drilling Screw
Werkstoff Nr. 1.4547 Petrochemical Studding & Nuts

SMO 254 Studs

ASTM A479 SMO Imperial Studs

254 SMO Metric Studs

DIN 1.4547 Heavy Hex Nuts
SS 254 SMO U Bolts

SMO 254 U Bolt c/w 2 Nuts

Long Leg 254 SMO U Bolt c/w 4 Nuts

DIN 1.4547 U Bolt with Plate

Clamping U ASTM A479 SMO Bolts
Stainless Steel Grade 254 SMO Anchor Bolt

SMO 254 Wedge Anchor Bolts

ASTM A479 SMO Expansion Anchor Bolt

254 SMO Sleeve Anchor Bolt

DIN 1.4547 Concrete Anchor Bolt
254 SMO Grade Rivets

SMO 254 POP Rivets (Open End)

ASTM A479 SMO Closed End POP Rivets (Sealed)

254 SMO Large Flange POP Rivets

DIN 1.4547 Countersunk POP Rivets
Stainless Steel 254 SMO Inserts

SMO 254 Unthreaded Rod

254 SMO E-Z Lok Threaded Inserts

DIN 1.4547 Dowel Pins
Size in Inches of ASTM B479 254 SMO Bolts
254 SMO Bolts are suitable to use between -50 and 400 °C temperature, don't forget to compare our prices with other Din 1.4547 Threaded Rod manufacturers in India
SMO 254 Screws Types | SIZE | GRADE | ASME | ISO | ASTM |
---|---|---|---|---|---|
ASTM A479 SMO Socket Head Cap Screws | M1.6 to M64 | 12.9 | B18.3.1 M | 4762 | A574M |
254 SMO Socket Low Head Cap Screws | M4 to M20 | 10.9 | |||
DIN 1.4547 Socket Head Shoulder Screws | M6 to M24 | 012.9 | B18.3.3M | ||
SMO UNS S31254 Countersunk Socket Head Screws | M3 to M20 | 012.9 | B18.3.5M | 10642 | F835M |
ASTM A479 254 SMO Button Head Socket Screws | M3 to M12 | 012.9 | B18.3.4M | 7380 | F835M |
SMO Werkstoff Nr. 1.4547 Flange Button Head Socket Screws | M3 to M10 | 012.9 | F835M | ||
A479 SMO 254 Knurled Point Socket Set Screws | M3 to M20 | 45H | B18.3.6M | 4029 | F912M |
ASME SA 479 254 SMO Flat Point Socket Set Screws | M6 to M12 | 45H | B18.3.6M | 4026 | F912M |
Stainless Steel Grade 254 Dog Point Socket Set Screws | M3 to M20 | 45H | B18.3.6M | 4028 | F912M |
UNS S31254 SMO Cone Point Socket Set Screws | M3 to M12 | 45H | B18.3.6M | 4027 | F912M |
Werkstoff Nr. 1.4547 Plain Point Socket Set Screws | M3 to M20 | 45H | B18.3.6M | 4029 | F912M |
SS 254 SMO Taper Pressure Plug | M8 to M22 | – |
SMO 254 Nuts Type | SIZE | PROPERTY CLASS | STANDARD |
---|---|---|---|
ASTM A479 SMO Hex Nut | M6 to M42 | 10 | ISO 4032 |
254 SMO Nylock Nut | M6 to M20 (Gr.8) M10 to M24 (Gr.10) |
8 & `10 | DIN 982 |
DIN 1.4547 Nylock Nut | M6 to M20 (Gr.8) M10 to M24 (Gr.10) |
8 & 10 | DIN 985 |
SMO UNS S31254 Hex Weld Nut | M6 to M12 | 8 | DIN 929 |
SMO 254 Washers Type | SIZE (in mm) | HARDNESS | STANDARD |
---|---|---|---|
Square Section ASTM A479 SMO Spring Washer | 3 to 39 | HV (430 to 530) | DIN 7980 |
Flat Section 254 SMO Spring Washer | 3 to 39 | HV (430 to 530) | DIN 127 B |
DIN 1.4547 Hardened Washer | 12 to 30 | HV (300 to 370) | IS 2016 |
SMO UNS S31254 Hardened Washer | 12 to 56 | Rockwell 26 to 45 (HDG) Rockwell 38 to 45 (Coated) |
ASTM F436M |
Werkstoff Nr. 1.4547 Bolt Type | SIZE | PROPERTY CLASS | TENSILE STRENGTH | STANDARD |
---|---|---|---|---|
SMO 254 Hex Head Bolt / Screws | M4 to M80 | 10.9 | 1040N / mm2 min | ISO 4017 (Full Thread) ISO 4014 (Half Thread) |
Below table compares various 254 SMO Fasteners metric sizes to the closest inch equivalent
Metric 254 SMO Bolts | Closest Inch |
---|---|
M1.4-0.3 Bolts | 0-80 (L) |
M2-0.4 Bolts | 1-64 (S) |
M2.5-0.45 Bolts | 3-56 (L) |
M3-0.5 Bolts | 4-48 (S) |
M3.5-0.6 Bolts | 6-40 (Same) |
M4-0.7 Bolts | 8-36 (L) |
M5-0.8 Bolts | 10-32 (S) |
M6-1.0 Bolts | 1/4-28 (L) |
M7-1.0 Bolts | 1/4-28 (S) |
M8-1.25 Bolts | 5/16-18 (S) |
M10-1.5 Bolts | 3/8-16 (S) |
M12-1.75 Bolts | 1/2-13 (L) |
M14-2.0 Bolts | 9/16-12 (L) |
M16-2.0 Bolts | 5/8-11 (S) |
M18-2.5 Bolts | 3/4-10 (L) |
M20-2.5 Bolts | 3/4-10 (S) |
M22-2.5 Bolts | 7/8-9 (L) |
M24-3.0 Bolts | 1-8 (L) |
M30-3.5 Bolts | 1 1/8-7 (S) |
M36-4.0 Bolts | 1 3/8-6 (S) |
*L = Larger
*S=Smaller
Torque Chart of ASTM B479 254 SMO Coupling Nut
Check below SMO 254 Bolt & Screw Torque which is calculated from a yield strength of 70ksi
ASTM A479 SMO Bolts Nominal Diameter (in) | Threads (in) | Torque ft-lb (Dry) | Torque ft-lb (Lubricated) |
---|---|---|---|
1/4″ | 20 | 6.5 | 4.8 |
28 | 7.4 | 5.5 | |
5/16″ | 18 | 13.2 | 10.0 |
24 | 14.7 | 11.0 | |
3/8″ | 16 | 23.5 | 17.7 |
24 | 26.6 | 19.9 | |
7/16″ | 16 | 37.6 | 28.2 |
24 | 42.0 | 31.5 | |
1/2″ | 13 | 57.4 | 43.0 |
20 | 64.7 | 48.5 | |
9/16″ | 12 | 82.7 | 62.1 |
18 | 92.3 | 69.2 | |
5/8″ | 11 | 114.2 | 85.7 |
18 | 129.3 | 97.0 | |
3/4″ | 10 | 203 | 152 |
16 | 226 | 170 | |
7/8″ | 9 | 326 | 245 |
14 | 361 | 270 | |
1″ | 8 | 490 | 368 |
14 | 549 | 412 | |
1-1/4″ | 7 | 853 | 639 |
12 | 944 | 708 | |
1-1/2″ | 6 | 1484 | 639 |
12 | 1669 | 1252 |
Check below SMO 254 Bolt & Screw Torque which is calculated from a yield strength of 80ksi
ASTM A479 SMO Bolts Nominal Diameter (in) | Threads (in) | Torque ft-lb (Dry) | Torque ft-lb (Lubricated) |
---|---|---|---|
1/4″ | 20 | 7.4 | 5.5 |
28 | 8.4 | 6.3 | |
5/16″ | 18 | 15.1 | 11.4 |
24 | 16.8 | 12.6 | |
3/8″ | 16 | 26.9 | 20.2 |
24 | 30.4 | 22.8 | |
7/16″ | 14 | 43.0 | 32.3 |
20 | 48.0 | 36.0 | |
1/2″ | 13 | 65.6 | 49.1 |
20 | 73.9 | 55.4 | |
9/16″ | 12 | 94.5 | 71.0 |
18 | 105.5 | 79.1 | |
5/8″ | 11 | 130.5 | 97.9 |
18 | 147.8 | 110.9 | |
3/4″ | 10 | 232 | 174 |
16 | 258 | 194 | |
7/8″ | 9 | 373 | 280 |
14 | 412 | 309 | |
1″ | 8 | 560 | 420 |
14 | 628 | 471 | |
1-1/4″ | 7 | 975 | 730 |
12 | 1079 | 809 | |
1-1/2″ | 6 | 1696 | 1271 |
12 | 1908 | 1430 |
SMO UNS S31254 Fasteners (Nut Bolts Screw Washer) DIN and ISO designations
254 SMO Bolts DIN No. | Description |
---|---|
84 | Slotted Cheese Head Machine Screws |
85 | Slotted Pan Head Machine Screws |
94 | Cotter Pin |
125A | Flat Washer (without Chamfer) |
125B | Flat Washer (with Chamfer) |
127B | Split Lock Washer |
137B | Spring Wave Washer |
315 | Wing Nut |
439B | Machine Screws Hex Nut, Finished Hex Jam Nut |
911 | Long Arm Hex Key |
912 | Hex Socket Head Cap Screws |
916 | Hex Socket Set Screws |
931 | Hex Head Cap Screws Partially Threaded |
933 | Hex Head Cap Screws Fully Threaded |
934 | Finished Hex Nut |
939 | Double End Stud |
960 | Hex Head Cap Screws Partially Threaded |
961 | Hex Head Cap Screws Fully Threaded |
963 | Slotted Flat Head Machine Screws |
964 | Slotted Oval Head Machine Screws |
965 | Phillips Flat Head Machine Screws |
966 | Phillips Oval Head Machine Screws |
975 | Threaded Rod |
980V | Hex Steel Prevailing Torque Lock Nut |
985 | Hex Nylon Insert Lock Nut |
6334 | Rod Coupling Nut |
6797A | External Tooth Lock Washer |
6797J | Internal Tooth Lock Washer |
6912 | Hex Low Socket Head Cap Screws |
6921 | Hex Flange Head Screws |
6923 | Hex Flange Nut |
ISO 7379 | Hex Socket Head Shoulder Screws |
ISO 7380 | Hex Button Socket Head Cap Screws |
7985 | Phillips Pan Head Machine Screws |
7991 | Hex Flat Socket Head Cap Screws |
ANSI / ASME Standards for 254 SMO Bolts (inch series)
B18.1.1 | Small Solid Rivets | B18.8.1 | Clevis Pins and Cotter Pins |
---|---|---|---|
B18.1.2 | Large Rivets | B18.8.2 | Taper Pins, Dowel Pins, Straight Pins, Grooved Pins and Spring Pins |
B18.2.1 | Square and Hex Bolts and Screws | B18.9 | Plow Bolts |
B18.2.2 | Square and Hex Nuts | B18.10 | Track Bolts and Nuts |
B18.2.6 | Fasteners for use in Structural Applications | B18.11 | Miniature Screws |
B18.3 | Socket Cap, Shoulder and Set Screws | B18.13 | Screws and Washer Assemblies (Sems) |
B18.5 | Round Head Bolts | B18.15 | Forged Eyebolts |
B18.6.2 | Slotted Head Cap Screws, Square Head Set Screws, and Slotted Headless Set Screws | B18.17 | Wing Nuts, Thumb Screws and Wing Screws |
B18.6.3 | Machine Screws and Machine Screws Nuts | B18.21.1 | Lock Washers |
B18.6.4 | Thread Forming and Thread Cutting Tapping Screws and Metallic Drive Screws | B18.22.1 | Plain Washers |
B18.7 | General Purpose Semi- Tubular Rivets, Full Tubular Rivets, Split Rivets and Rivet Caps | B18.23.1 | Beveled Washers |
Dimension of Stainless Steel UNS S31254 Socket Head Cap Screw
Manufacturer & exporter of 254 SMO Bolts and UNS S31254 Hex Nuts in metric sizes as per American standard, View Din 1.4547 Threaded Rod Dimension Chart

Nominal
|
Thread.
|
Hex Socket Size
|
Body diameter and Head height
|
Head Dia
|
Soc. length
|
||
Size
|
Pitch
|
Max
|
Min
|
Max
|
Min
|
||
J
|
D /H
|
A
|
K
|
||||
M3
|
0.5
|
2.50
|
3.00
|
2.86
|
5.50
|
5.20
|
1.3
|
M4
|
0.70
|
3.00
|
4.00
|
3.82
|
7.00
|
6.64
|
2.00
|
M5
|
0.8
|
4.00
|
5.00
|
4.82
|
8.50
|
8.14
|
2.70
|
M6
|
1.0
|
5.00
|
6.00
|
5.82
|
10.00
|
9.64
|
3.30
|
M8
|
1.25
|
6.00
|
8.00
|
7.78
|
13.00
|
12.57
|
4.3
|
M10
|
1.5
|
8.00
|
10.00
|
9.78
|
16.00
|
15.57
|
5.50
|
M12
|
1.75
|
10.00
|
12.00
|
11.73
|
18.00
|
17.57
|
6.60
|
M16
|
2.0
|
14.00
|
16.00
|
15.73
|
24.00
|
23.48
|
8.80
|
M20
|
2.5
|
17.00
|
20.00
|
19.67
|
30.00
|
29.48
|
10.70
|
M24
|
3.0
|
19.00
|
24.00
|
23.67
|
36.00
|
35.38
|
12.90
|
Dimensions of SMO 254 Hex Nuts

**All measurements in millimeters**
Nominal Size or Basic Major Thread Diameter
|
F
|
G
|
H
|
||||||
Width
Across Flats |
Width
Across Corners |
Thickness
|
|||||||
Basic
|
Max
|
Min
|
Max
|
Min
|
Basic
|
Max
|
Min
|
||
1/4
|
.2500
|
7/16
|
.438
|
.428
|
.505
|
.488
|
7/32
|
.226
|
.212
|
5/16
|
.3125
|
1/2
|
.500
|
.489
|
.577
|
.557
|
17/64
|
.273
|
.258
|
3/8
|
.3750
|
9/16
|
.562
|
.551
|
.650
|
.628
|
21/64
|
.337
|
.479
|
7/16
|
.4375
|
11/16
|
.688
|
.675
|
.794
|
.768
|
3/8
|
.385
|
.365
|
1/2
|
.5000
|
3/4
|
.750
|
.736
|
.866
|
.840
|
7/16
|
.448
|
.427
|
9/16
|
.5625
|
7/8
|
.875
|
.861
|
1.010
|
.982
|
31/64
|
.496
|
.473
|
5/8
|
.6250
|
15/16
|
.938
|
.922
|
1.083
|
1.051
|
35/64
|
.559
|
.535
|
3/4
|
.7500
|
1-1/8
|
1.125
|
1.088
|
1.299
|
1.240
|
41/64
|
.665
|
.617
|
7/8
|
.8750
|
1-5/16
|
1.312
|
1.269
|
1.516
|
1.447
|
3/4
|
.776
|
.724
|
1
|
1.0000
|
1-1/2
|
1.500
|
1.450
|
1.732
|
1.653
|
55/64
|
.887
|
.831
|
1-1/8
|
1.1250
|
1-11/16
|
1.688
|
1.631
|
1.949
|
1.859
|
31/32
|
.999
|
.939
|
1-3/8
|
1.3750
|
2-1/16
|
2.062
|
1.994
|
2.382
|
2.273
|
1-11/64
|
1.206
|
1.138
|
1-1/2
|
1.500
|
2-1/4
|
2.250
|
2.175
|
2.598
|
2.480
|
1-9/32
|
1.ASTM A194 GR. 8
|
1.245
|
1-5/8
|
1.6250
|
2-7/16
|
2.438
|
2.356
|
2.815
|
2.686
|
1-25/64
|
1.429
|
1.353
|
1-3/4
|
1.7500
|
2-5/8
|
2.625
|
2.538
|
3.031
|
2.893
|
1-1/2
|
1.540
|
1.460
|
2
|
2.0000
|
3
|
3.000
|
2.900
|
3.464
|
3.306
|
1-23/32
|
1.763
|
1.675
|
2-1/4
|
2.2500
|
3-3/8
|
3.375
|
3.263
|
3.897
|
3.719
|
1-15/16
|
1.986
|
1.890
|
2-1/2
|
2.5000
|
3-3/4
|
3.750
|
3.625
|
4.330
|
4.133
|
2-5/32
|
2.209
|
2.105
|
2-3/4
|
2.7500
|
4-1/8
|
4.125
|
3.988
|
4.763
|
4.546
|
2-3/8
|
2.431
|
2.319
|
254 SMO Flat Washer Dimensions

Bolt Size
|
USS
|
SAE
|
||||
OD (in.)
|
ID (in.)
|
Thickness
|
OD (in.)
|
ID (in.)
|
Thickness
|
|
1/8 (#6)
|
–
|
–
|
–
|
0.375
|
0.156
|
.036/.065
|
5/32 (#8)
|
–
|
–
|
–
|
0.438
|
0.188
|
.036/.065
|
3/16 (#10)
|
0.560
|
0.250
|
.036/.065
|
0.500
|
0.220
|
.036/.065
|
7/32 (#12)
|
–
|
–
|
–
|
0.562
|
0.250
|
.051/.080
|
1/4 (#14)
|
0.734
|
0.312
|
.051/.080
|
0.625
|
0.281
|
.051/.080
|
5/16
|
0.875
|
0.375
|
.064/.104
|
0.688
|
0.344
|
.051/.080
|
3/8
|
1.000
|
0.438
|
.064/.104
|
0.812
|
0.406
|
.051/.080
|
7/16
|
1.250
|
0.500
|
.064/.104
|
0.922
|
0.469
|
.051/.080
|
1/2
|
1.375
|
0.562
|
.086/.132
|
1.062
|
0.531
|
.074/.121
|
9/16
|
1.469
|
0.625
|
.086/.132
|
1.156
|
0.594
|
.074/.121
|
5/8
|
1.750
|
0.688
|
.108/.160
|
1.312
|
0.656
|
.074/.121
|
3/4
|
2.000
|
0.812
|
.122/.177
|
1.469
|
0.812
|
.108/.160
|
7/8
|
2.250
|
0.938
|
.136/.192
|
1.750
|
0.938
|
.108/.160
|
1
|
2.500
|
1.062
|
.136/.192
|
2.000
|
1.062
|
.108/.160
|
1 1/8
|
2.750
|
1.250
|
.136/.192
|
2.250
|
1.250
|
.108/.160
|
1 1/4
|
3.000
|
1.375
|
.136/.192
|
2.500
|
1.375
|
.136/.192
|
1 3/8
|
3.250
|
1.500
|
.153/.213
|
2.750
|
1.500
|
.136/.213
|
1 1/2
|
3.500
|
1.625
|
.153/.213
|
3.000
|
1.625
|
.153/.213
|
1 5/8
|
3.750
|
1.750
|
.153/.213
|
–
|
–
|
–
|
1 3/4
|
4.000
|
1.875
|
.153/.213
|
–
|
–
|
–
|
1 7/8
|
4.250
|
2.000
|
.153/.213
|
–
|
–
|
–
|
2
|
4.500
|
2.125
|
.153/.213
|
–
|
–
|
–
|
2 1/4
|
4.750
|
2.375
|
.320/.248
|
–
|
–
|
–
|
2 1/2
|
5.000
|
2.625
|
.210/.280
|
–
|
–
|
–
|
2 3/4
|
5.250
|
2.875
|
.228/.410S
|
–
|
–
|
–
|
3
|
5.500
|
3.125
|
.249/.327
|
–
|
–
|
–
|
254 SMO Hex Bolt Dimension

NOMINAL SIZE (D)
|
BODY DIAMETER
|
HEAD THICKNEASTM A479
|
ACROASTM A479 THE FLATS
|
ACROASTM A479 CORNERS
|
||||
---|---|---|---|---|---|---|---|---|
D (MAX)
|
D (MIN)
|
H (MAX)
|
H (MIN)
|
F (MAX)
|
F (MIN)
|
C (MAX)
|
C (MIN)
|
|
m10
|
10.00
|
9.78
|
6.63
|
6.17
|
17.00
|
15.73
|
18.48
|
17.77
|
m12
|
12.00
|
11.73
|
7.76
|
4.24
|
19.00
|
17.73
|
20.78
|
20.03
|
m14
|
14.00
|
13.73
|
9.09
|
8.51
|
22.00
|
20.67
|
24.25
|
23.35
|
m16
|
16.00
|
15.73
|
10.32
|
9.68
|
24.00
|
23.67
|
27.71
|
26.75
|
m20
|
20.00
|
19.67
|
12.88
|
12.12
|
30.00
|
29.16
|
34.64
|
32.95
|
m24
|
24.00
|
23.67
|
15.44
|
14.56
|
36.00
|
35.00
|
41.57
|
39.55
|
m30
|
30.00
|
29.67
|
19.48
|
17.92
|
46.00
|
45.00
|
53.12
|
50.85
|
m36
|
36.00
|
35.61
|
23.38
|
21.63
|
55.00
|
53.80
|
63.51
|
60.79
|
m42
|
42.00
|
41.38
|
26.97
|
25.03
|
65.00
|
62.90
|
75.06
|
71.71
|
m48
|
48.00
|
47.38
|
31.07
|
28.93
|
75.00
|
72.60
|
86.60
|
82.76
|
m56
|
56.00
|
55.26
|
36.2
|
33.80
|
85.00
|
82.20
|
98.15
|
93.71
|
m64
|
64.00
|
63.26
|
41.32
|
38.68
|
95.00
|
91.80
|
109.70
|
104.65
|
m72
|
72.00
|
71.26
|
46.45
|
43.55
|
105.00
|
101.40
|
121.24
|
115.60
|
m80
|
80.00
|
79.26
|
51.58
|
48.42
|
115.00
|
111.00
|
132.72
|
126.54
|
m90
|
90.00
|
89.13
|
57.74
|
54.26
|
130.00
|
125.50
|
150.11
|
143.07
|
m100
|
90.00
|
99.13
|
63.9
|
60.10
|
145.00
|
140.00
|
167.43
|
159.60
|