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Alloy Steel Fasteners

High-strength alloy steel fasteners in 35CrMo and 40CrMo: socket head cap screws to Grade 12.9, button and flat head screws to Grade 10.9, hex bolts to Grade 8, and ASTM A193 B7 threaded rods and stud bolts. Finishes include black oxide, zinc plated, yellow zinc, black zinc and Dacromet. The range targets machinery, automotive and structural joints where carbon steel grades are insufficient.

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Socket Head Cap Screw — 40CrMo High Tensile Socket Head Cap Screw Grade 12.9 Black Oxide ASME B18.3 Allen Bolt 1/4-20 3/8-16 5/16-18 1/2-13 7/8-9
1/4-203/8-165/16-181/2-137/8-9

40CrMo High Tensile Socket Head Cap Screw Grade 12.9 Black Oxide ASME B18.3 Allen Bolt

$0.00
40CrMo High Tensile Socket Head Cap Screw Grade 12.9 Black Oxide ASME B18.3 Allen Bolt Material: 40CrMo Alloy Steel Grade / Class: Grade 12.9 Standards: ASME B18.3 Thread Series: UNC...
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Socket Head Cap Screw — Grade 12.9 Socket Head Cap Screw 35CrMo UNC 1/4-20 5/16-18 3/8-16 1/2-13 Black Oxide ASME B18.3
1/4-205/16-183/8-161/2-13

Grade 12.9 Socket Head Cap Screw 35CrMo UNC Black Oxide ASME B18.3

$0.00
Grade 12.9 Socket Head Cap Screw 35CrMo UNC Black Oxide ASME B18.3 Material: 35CrMo Alloy Steel Grade / Class: Grade 12.9 Standards: ASME B18.3 Thread Series: UNC Finish / Coating:...
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Socket Head Cap Screw — Grade 10.9 40CrMo/B7 UNC Socket Head Cap Screw 3/8-16 1/2-13 3/4-10 1-8 1-1/4-7 1-1/2-6 Yellow Zinc ASME
3/8-161/2-133/4-101-81-1/4-71-1/2-6

Grade 10.9 40CrMo/B7 UNC Socket Head Cap Screw Yellow Zinc ASME

$0.00
Grade 10.9 40CrMo/B7 UNC Socket Head Cap Screw Yellow Zinc ASME Material: 40CrMo Alloy Steel Grade / Class: Grade 10.9 Standards: ASME Thread Series: UNC Finish / Coating: Yellow Zinc...
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Socket Head Cap Screw — Grade 10.9 Allen Bolt Socket Head Cap Screw 40CrMo UNC 5/16-18 1/2-13 5/8-11 3/4-10 Black Oxide
5/16-181/2-135/8-113/4-10

Grade 10.9 Allen Bolt Socket Head Cap Screw 40CrMo UNC Black Oxide

$0.00
Grade 10.9 Allen Bolt Socket Head Cap Screw 40CrMo UNC Black Oxide Material: 40CrMo Alloy Steel Grade / Class: Grade 10.9 Thread Series: UNC Finish / Coating: Black Oxide
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Socket Head Cap Screw — 35CrMo Grade 10.9 Hex Socket Cap Screw UNC 5/16-18 7/16-14 5/8-11 3/4-10 Black Oxide High Strength
5/16-187/16-145/8-113/4-10

35CrMo Grade 10.9 Hex Socket Cap Screw UNC Black Oxide High Strength

$0.00
35CrMo Grade 10.9 Hex Socket Cap Screw UNC Black Oxide High Strength Material: 35CrMo Alloy Steel Grade / Class: Grade 10.9 Thread Series: UNC Finish / Coating: Black Oxide
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Socket Head Cap Screw — 40CrMo High Tensile Socket Head Cap Screw Grade 10.9 UNC 7/16-14 1/2-13 5/8-11 7/8-9 Black Oxide
7/16-141/2-135/8-117/8-9

40CrMo High Tensile Socket Head Cap Screw Grade 10.9 UNC Black Oxide

$0.00
40CrMo High Tensile Socket Head Cap Screw Grade 10.9 UNC Black Oxide Material: 40CrMo Alloy Steel Grade / Class: Grade 10.9 Thread Series: UNC Finish / Coating: Black Oxide
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Socket Head Cap Screw — 40CrMo Grade 10.9 UNF Socket Head Cap Screw 1/4-28 to 1-1/4-12 Yellow Zinc Plated ASME B18.3 Hex
1/4-281-1/4-12

40CrMo Grade 10.9 UNF Socket Head Cap Screw Yellow Zinc Plated ASME B18.3 Hex

$0.00
40CrMo Grade 10.9 UNF Socket Head Cap Screw Yellow Zinc Plated ASME B18.3 Hex Material: 40CrMo Alloy Steel Grade / Class: Grade 10.9 Standards: ASME B18.3 Thread Series: UNF Finish...
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Socket Head Cap Screw — Grade 10.9 Hex Socket Head Cap Screw 40CrMo UNC 5/8-11 3/4-10 7/8-9 1-8 Black Oxide High Tensile
5/8-113/4-107/8-91-8

Grade 10.9 Hex Socket Head Cap Screw 40CrMo UNC Black Oxide High Tensile

$0.00
Grade 10.9 Hex Socket Head Cap Screw 40CrMo UNC Black Oxide High Tensile Material: 40CrMo Alloy Steel Grade / Class: Grade 10.9 Thread Series: UNC Finish / Coating: Black Oxide...
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Socket Head Cap Screw — B7 Alloy Steel Socket Head Cap Screw Grade 12.9 UNC 1/4-20 3/8-16 1/2-13 3/4-10 Black Oxide ASME
1/4-203/8-161/2-133/4-10

B7 Alloy Steel Socket Head Cap Screw Grade 12.9 UNC Black Oxide ASME

$0.00
B7 Alloy Steel Socket Head Cap Screw Grade 12.9 UNC Black Oxide ASME Material: Alloy Steel Grade / Class: Grade 12.9, ASTM A193 B7 Standards: ASME Thread Series: UNC Finish...
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Socket Head Cap Screw — 12.9 Grade10#-32 1/4-28 3/8-24 5/16-24 1/2-20 5/8-18 7/8-14 1-14 1-1/4-12 1-1/8Black Alloy Steel Hexagonal Hex Socket Cap Screw
#10-321/4-285/16-243/8-241/2-205/8-187/8-141-141-1/4-129/16-183/4-161-1/8

12.9 Grade10#-32 1-1/8Black Alloy Steel Hexagonal Hex Socket Cap Screw

$0.00
12.9 Grade10#-32 1-1/8Black Alloy Steel Hexagonal Hex Socket Cap Screw Material: Alloy Steel Grade / Class: Grade 12.9 Thread Series: UNF Finish / Coating: Black Oxide
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Socket Head Cap Screw — Alloy Steel 35CrMo Hexagon Socket Head Cap Screw Grade 8.8 Black Oxide Heat Treated Bolts
#0#2#3#4#5#6#8#101/4-20

Alloy Steel 35CrMo Hexagon Socket Head Cap Screw Grade 8.8 Black Oxide Heat Treated Bolts

$0.00
Alloy Steel 35CrMo Hexagon Socket Head Cap Screw Grade 8.8 Black Oxide Heat Treated Bolts Material: 35CrMo Alloy Steel Grade / Class: Grade 8.8 Finish / Coating: Black Oxide Features:...
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Socket Head Cap Screw — ASME B18.3 Grade 12.9 B7 Alloy Steel UNF Socket Cap Screw 5/16-24 1/2-20 5/8-18 3/4-16 7/8-14 Yellow Zinc
5/16-241/2-205/8-183/4-167/8-14

ASME B18.3 Grade 12.9 B7 Alloy Steel UNF Socket Cap Screw Yellow Zinc

$0.00
ASME B18.3 Grade 12.9 B7 Alloy Steel UNF Socket Cap Screw Yellow Zinc Material: Alloy Steel Grade / Class: Grade 12.9, ASTM A193 B7 Standards: ASME B18.3 Thread Series: UNF...
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Socket Head Cap Screw — Grade 12.9 Alloy Steel 35CrMo UNF Hex Socket Cap Screw 1/4-28 3/8-24 1/2-20 5/8-18 3/4-16 1-14 Yellow Zinc
1/4-283/8-241/2-205/8-183/4-161-14

Grade 12.9 Alloy Steel 35CrMo UNF Hex Socket Cap Screw Yellow Zinc

$0.00
Grade 12.9 Alloy Steel 35CrMo UNF Hex Socket Cap Screw Yellow Zinc Material: 35CrMo Alloy Steel Grade / Class: Grade 12.9 Thread Series: UNF Finish / Coating: Yellow Zinc
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Socket Head Cap Screw — Dacromet Grade 12.9 Hexagon Socket Cap Screws M16/M18/M20/M27 Alloy Steel Bolts DIN 912 Gb70.1 Compliant
M16M18M20M27

Dacromet Grade 12.9 Hexagon Socket Cap Screws M16/M18/M20/M27 Alloy Steel Bolts DIN 912 Gb70.1 Compliant

$0.00
Dacromet Grade 12.9 Hexagon Socket Cap Screws M16/M18/M20/M27 Alloy Steel Bolts DIN 912 Gb70.1 Compliant Material: Alloy Steel Grade / Class: Grade 12.9 Standards: DIN 912, GB 70.1 Thread Series:...
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Socket Head Cap Screw — Grade 12.9 Alloy Steel B7/35CrMo Hex Socket Cap Screw UNC & UNF 1/4-20 to 1-8 Yellow Zinc Finish
1/4-201-81/21/41-1/21-1/41-3/41-1/81-3/82-1/23/4

Grade 12.9 Alloy Steel B7/35CrMo Hex Socket Cap Screw UNC & UNF Yellow Zinc Finish

$0.00
Grade 12.9 Alloy Steel B7/35CrMo Hex Socket Cap Screw UNC & UNF Yellow Zinc Finish Material: 35CrMo Alloy Steel Grade / Class: Grade 12.9 Thread Series: UNC, UNF Finish /...
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Socket Head Cap Screw — 12.9 Grade 4#-40 6#-32 8#-32 10#-24 1/4-20 3/8-16 5/16-18 1/2-13 7/8-9 Black Alloy Steel Hexagonal Hex Socket Cap Screw Bolt UNC
#4-40#6-32#8-32#10-241/4-203/8-165/16-181/2-137/8-9

12.9 Grade Black Alloy Steel Hexagonal Hex Socket Cap Screw Bolt UNC

$0.00
12.9 Grade Black Alloy Steel Hexagonal Hex Socket Cap Screw Bolt UNC Material: Alloy Steel Grade / Class: Grade 12.9 Thread Series: UNC Finish / Coating: Black Oxide
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Socket Head Cap Screw — ASTM A193 B7 Grade Socket Head Cap Screw 12.9 Black Oxide Alloy Steel Industrial Fastener Bolt UNC Unf
#0#2#3#4#5#6#8#101/4-20

ASTM A193 B7 Grade Socket Head Cap Screw 12.9 Black Oxide Alloy Steel Industrial Fastener Bolt UNC Unf

$0.00
ASTM A193 B7 Grade Socket Head Cap Screw 12.9 Black Oxide Alloy Steel Industrial Fastener Bolt UNC Unf Material: Alloy Steel Grade / Class: Grade 12.9 Standards: ASTM A193 Thread...
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Socket Head Cap Screw — 12.9 Grade Alloy Steel Hex Socket Cap Screw UNC 3/8-16 1/2-13 3/4-10 1-1/4-7 Black Oxide Bolt
3/8-161/2-133/4-101-1/4-7

12.9 Grade Alloy Steel Hex Socket Cap Screw UNC Black Oxide Bolt

$0.00
12.9 Grade Alloy Steel Hex Socket Cap Screw UNC Black Oxide Bolt Material: Alloy Steel Grade / Class: Grade 12.9 Thread Series: UNC Finish / Coating: Black Oxide
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Socket Head Cap Screw — Alloy Steel 35CrMo Socket Head Cap Screw Grade 12.9 Black Oxide ASME B18.3 High Strength 4#-40 6#-32 8#-32 10#-24 1/4-20 3/8-16
#4-40#6-32#8-32#10-241/4-203/8-16

Alloy Steel 35CrMo Socket Head Cap Screw Grade 12.9 Black Oxide ASME B18.3 High Strength

$0.00
Alloy Steel 35CrMo Socket Head Cap Screw Grade 12.9 Black Oxide ASME B18.3 High Strength Material: 35CrMo Alloy Steel Grade / Class: Grade 12.9 Standards: ASME B18.3 Thread Series: UNC...
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Socket Head Cap Screw — 40CrMo Alloy Steel Socket Head Cap Screw Grade 12.9 UNC 3/8-16 1/2-13 7/8-9 1-8 Black Oxide
3/8-161/2-137/8-91-8

40CrMo Alloy Steel Socket Head Cap Screw Grade 12.9 UNC Black Oxide

$0.00
40CrMo Alloy Steel Socket Head Cap Screw Grade 12.9 UNC Black Oxide Material: 40CrMo Alloy Steel Grade / Class: Grade 12.9 Thread Series: UNC Finish / Coating: Black Oxide
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Threaded Rod — Flange Stud Bolt Set Threaded Rod B7 + 2H Nuts UNC 3/4-10 1-8 1-1/4-7 Full Threaded Zinc Plated
3/4-101-81-1/4-7

Flange Stud Bolt Set Threaded Rod B7 + 2H Nuts UNC Full Threaded Zinc Plated

$0.00
Flange Stud Bolt Set Threaded Rod B7 + 2H Nuts UNC Full Threaded Zinc Plated Material: Alloy Steel Grade / Class: ASTM A193 B7 Thread Series: UNC Finish / Coating:...
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Threaded Rod — ASME B18.31.1 Threaded Rod UNC 3/8-16 to 1-1/2-6 B7 Material Zinc Plated Full Threaded Industrial Fastener
3/8-161-1/2-6

ASME B18.31.1 Threaded Rod UNC B7 Material Zinc Plated Full Threaded Industrial Fastener

$0.00
ASME B18.31.1 Threaded Rod UNC B7 Material Zinc Plated Full Threaded Industrial Fastener Material: Alloy Steel Grade / Class: ASTM A193 B7 Standards: ASME B18.31.1 Thread Series: UNC Finish /...
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Threaded Rod — 8UN Constant Pitch Threaded Rod 1"-8 1-1/4"-8 1-1/2"-8 ASME B16.5 Heavy Duty Full Threaded Rod Zinc Plated
1-81-1/4-81-1/2-8

8UN Constant Pitch Threaded Rod 1"-8 1-1/4"-8 1-1/2"-8 ASME B16.5 Heavy Duty Full Threaded Rod Zinc Plated

$0.00
8UN Constant Pitch Threaded Rod 1"-8 1-1/4"-8 1-1/2"-8 ASME B16.5 Heavy Duty Full Threaded Rod Zinc Plated Material: Alloy Steel Grade / Class: ASTM A193 B7 Standards: ASME B16.5 Thread...
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Threaded Rod — 1-3/8"-6 UNC Threaded Rod 35CrMo Steel Full Threaded Zinc Plated Heavy Duty Rod for Petrochemical
1-3/8-6

1-3/8"-6 UNC Threaded Rod 35CrMo Steel Full Threaded Zinc Plated Heavy Duty Rod for Petrochemical

$0.00
1-3/8"-6 UNC Threaded Rod 35CrMo Steel Full Threaded Zinc Plated Heavy Duty Rod for Petrochemical Material: 35CrMo Alloy Steel Thread Series: UNC Finish / Coating: Zinc Plated Features: Full Thread...
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Buying Guide

Common Questions

What information do you need to quote this series?

Share the standard, thread size, length, material, grade, finish and quantity. For non-standard parts, a drawing or sample helps us confirm production details faster.

Can you make sizes or materials not listed here?

Yes. We manufacture to drawing and to sample. Send your specification through the RFQ form and we will confirm feasibility, MOQ and lead time.

What inspection and material documents can you provide?

Material test certificates, dimensional inspection reports and coating reports are available on request, depending on the material and finish of your order.

What is the MOQ, and can I get samples first?

MOQ depends on size, material and finish — standard catalog sizes start lower, and custom parts are quoted per drawing. Samples are available for most standard items; mention sampling when you send the RFQ and we will confirm.

How long does production and delivery take?

Lead time is confirmed per order with your quotation. Coated and custom parts need additional production and surface-treatment time. Share your target delivery date in the RFQ and we will confirm whether we can meet it before you commit.

Can't find the exact spec?

We manufacture standard and custom fasteners to order. Tell us the size, material, grade, finish and quantity — or send your drawing — and we will confirm MOQ and lead time.

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