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Carbon Steel Fasteners

Carbon and medium-carbon steel fasteners across the full catalog: hex bolts in Grade 5 and Grade 8 (10B21, 45#), button and flat head socket screws, threaded rods, nuts and washers. UNC, UNF and metric threads with zinc plated, yellow zinc, black oxide, black zinc and Dacromet finishes. A cost-effective default for machinery, construction and general industrial assembly.

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Hex Nut — ASTMA194/2H 1-8 3/4-10 3/8-16 5/8-11/2-13 1-1/2-8 1-1/4-8 Hex Nut BSF Steel Black 45# B7 High Strength Hexagonal Nut A194 2H
1-83/4-103/8-165/8-111/2-131-1/2-81-1/4-8

ASTMA194/2H 5/8-11/2-13 Hex Nut BSF Steel Black 45# B7 High Strength Hexagonal Nut A194 2H

$0.00
ASTMA194/2H 5/8-11/2-13 Hex Nut BSF Steel Black 45# B7 High Strength Hexagonal Nut A194 2H Material: Steel Grade / Class: ASTM A194 2H Standards: ASTM A194 Thread Series: BSF Finish...
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Hex Flange Nut — Hex Flange Nuts UNC UNF 1/4-20 3/8-16 5/16-18 1/2-13 5/8-11 3/4inch Steel Zinc-plated Yellow Zinc Nylon Hex Insert Lock Nut
1/4-203/8-165/16-181/2-135/8-113/4

Hex Flange Nuts UNC UNF 3/4inch Steel Zinc-plated Yellow Zinc Nylon Hex Insert Lock Nut

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Hex Flange Nuts UNC UNF 3/4inch Steel Zinc-plated Yellow Zinc Nylon Hex Insert Lock Nut Material: Steel Grade / Class: Grade 5 Thread Series: UNC, UNF Finish / Coating: Yellow...
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Hex Nut — ANSI/ASME B18.2.2 Grade 5 Grade 8 Hexagon Nuts 1/4-20 5/16-18 9/16-12 7/8-9 3/4-10 1-8 1-14 1-1/2-6 1-1/4-7Black Steel Hex Nut
1/4-205/16-189/16-127/8-93/4-101-81-1/2-61-141-1/4-7

Steel Hex Nut Grade 5 & Grade 8 UNC ASME B18.2.2 Black Oxide

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Steel Hex Nut Grade 5 & Grade 8 UNC ASME B18.2.2 Black Oxide Material: Steel Grade / Class: Grade 5, Grade 8 Standards: ASME B18.2.2 Thread Series: UNC Finish /...
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Nylon Insert Lock Nut — ASME 18.6.6 Hex Nylon Insert Lock Nut 1/4 5/16 3/8 10# 1-8 1-1/4-12UNC UNF Steel Zinc Plated Hexagon Self-locking Nuts Locknut
1/45/163/8#101-81-1/4-12

ASME 18.6.6 Hex Nylon Insert Lock Nut 1-1/4-12UNC UNF Steel Zinc Plated Hexagon Self-locking Nuts Locknut

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ASME 18.6.6 Hex Nylon Insert Lock Nut 1-1/4-12UNC UNF Steel Zinc Plated Hexagon Self-locking Nuts Locknut Material: Steel Standards: ASME B18.6.6 Thread Series: UNC, UNF Finish / Coating: Zinc Plated...
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Nylon Insert Lock Nut — M8 M10 M12 M14 M16 M18 M20 M22 M27 DIN985 Carbon Steel Anti-Loose Nylock Nut Dacromet Nylon Insert Lock Nuts Product Type Nuts
M8M10M12M14M16M18M20M22M27

DIN985 Carbon Steel Anti-Loose Nylock Nut Dacromet Nylon Insert Lock Nuts Product Type Nuts

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DIN985 Carbon Steel Anti-Loose Nylock Nut Dacromet Nylon Insert Lock Nuts Product Type Nuts Material: Carbon Steel Standards: DIN 985 Thread Series: Metric Finish / Coating: Dacromet Features: Self-Locking
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Pan Head Phillips Machine Screw — Black Oxide Steel Round Pan Head Socket Screws Imperial UNC UNF 4# 6# 8# 10# 1/4 3/16 5/16 3/8 Sizes Rounded Head Screw
#4#6#8#101/43/165/163/8

Black Oxide Steel Round Pan Head Socket Screws Imperial UNC UNF Sizes Rounded Head Screw

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Black Oxide Steel Round Pan Head Socket Screws Imperial UNC UNF Sizes Rounded Head Screw Material: Steel Thread Series: UNC, UNF Finish / Coating: Black Oxide
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Pan Head Phillips Machine Screw — Pan Head Socket Screws Carbon Steel Zinc Plated Golden Color UNC UNF ASME B18.6.3 Round Head Allen Fasteners 8.8 Grade
#8#1211/21-1/21-1/43/43/8

Pan Head Socket Screws Carbon Steel Zinc Plated Golden Color UNC UNF ASME B18.6.3 Round Head Allen Fasteners 8.8 Grade

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Pan Head Socket Screws Carbon Steel Zinc Plated Golden Color UNC UNF ASME B18.6.3 Round Head Allen Fasteners 8.8 Grade Material: Carbon Steel Grade / Class: Grade 8.8 Standards: ASME...
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Pan Head Phillips Machine Screw — Asme4#-40 6#-32 8#-24 10#-24 10#-32 1/4-20 Zinc Plated Cross Recessed Pan Head Screw UNC Round Head Cross Recessed Machine Bolts
#4-40#6-32#8-24#10-24#10-321/4-20

Asme4#-40 Zinc Plated Cross Recessed Pan Head Screw UNC Round Head Cross Recessed Machine Bolts

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Asme4#-40 Zinc Plated Cross Recessed Pan Head Screw UNC Round Head Cross Recessed Machine Bolts Material: Carbon Steel Standards: ASME Thread Series: UNC Finish / Coating: Zinc Plated
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Pan Head Phillips Machine Screw — #4-40 #6-32 #8-32 #10-24 10#-32 1/4 Unc Carbon Steel 4.8 Grade Blue White Zinc Plated Painted Flat Head Phillips Machine Screws
#4-40#6-32#8-32#10-24#10-321/4-20

Unc Carbon Steel 4.8 Grade Blue White Zinc Plated Painted Flat Head Phillips Machine Screws

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Unc Carbon Steel 4.8 Grade Blue White Zinc Plated Painted Flat Head Phillips Machine Screws Material: Carbon Steel Grade / Class: Grade 4.8 Thread Series: UNC Finish / Coating: Zinc...
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Hex Flange Bolt — Flange Bolt Alternative Hexagon Head Bolt UNC 7/16-14 1/2-13 3/4-10 Black Oxide Grade 8 45# Steel
7/16-141/2-133/4-10

Flange Bolt Alternative Hexagon Head Bolt UNC Black Oxide Grade 8 45# Steel

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Flange Bolt Alternative Hexagon Head Bolt UNC Black Oxide Grade 8 45# Steel Material: 45# Carbon Steel Grade / Class: Grade 8 Standards: ASME B18.2.1 Thread Series: UNC Finish /...
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Hex Flange Bolt — Asme/ansi Flange Bolts 1/4-20 5/16-18 3/8-16 7/16-14 1/2-13 5/8-11 UNC UNF Flange Bolts Outer Hexagonal Serrated Screw
1/4-205/16-183/8-167/16-141/2-135/8-11

Steel Serrated Hex Flange Bolt UNC & UNF Zinc Plated

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Steel Serrated Hex Flange Bolt UNC & UNF Zinc Plated Material: Steel Thread Series: UNC, UNF Finish / Coating: Zinc Plated Features: Serrated Flange
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Socket Set Screw (Cup Point) — Asme Unc Unf High Tensile Set Screws Cup Point Set Screw7/16-14 4#-40 6-32 10-24 1/4-20 3/16-24 3/8-16 1/2-13 Headless Set Screw
7/16-14#4-40#6-32#10-241/4-203/16-243/8-161/2-13

Asme Unc Unf High Tensile Set Screws Cup Point Set Screw7/16-14 Headless Set Screw

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Asme Unc Unf High Tensile Set Screws Cup Point Set Screw7/16-14 Headless Set Screw Material: Steel Grade / Class: Grade 10.9 Thread Series: UNC, UNF Finish / Coating: Black Oxide...
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Flat Washer — ASME ANSI Flat Washer 4# 6# 8# 10# 1/4 3/8 5/16 1/2 5/8 1-1/4 SAE F436 Black Zinc Black Oxide Zinc-plated Steel Flat Washer
#4#6#8#101/43/85/161/25/81-1/4

Steel Flat Washer SAE F436 Black Oxide

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Steel Flat Washer SAE F436 Black Oxide Material: Steel Standards: SAE F436 Finish / Coating: Black Oxide
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Flat Washer — M10 M12 M16 M27 M33 M8 M14 M22 Din125a Carbon Steel 200HV Dacromet Plain Flat Metal Washers Dacromet Plain Washers
M8M10M12M14M16M22M27M33

Din125a Carbon Steel 200HV Dacromet Plain Flat Metal Washers Dacromet Plain Washers

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Din125a Carbon Steel 200HV Dacromet Plain Flat Metal Washers Dacromet Plain Washers Material: Carbon Steel Grade / Class: 200HV Standards: DIN 125 Thread Series: Metric Finish / Coating: Dacromet
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Split Lock Washer — ASME ANSI 6# 8# 10# 1/4 3/8 5/16 1/2 5/8 3/4 1 1-1/4 1-1/2 1-3/4 Zinc Plated Spring Lock Washers Carbon Steel Spring Washer
#6#8#101/43/85/161/25/83/411-1/41-1/21-3/4

Carbon Steel Split Lock Washer Zinc Plated

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Carbon Steel Split Lock Washer Zinc Plated Material: Carbon Steel Finish / Coating: Zinc Plated
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Flat Head Socket Cap Screw — asme ansi 4#-40 6#-32 8#-32 10#-24 10#-32 1/4-20 3/8-16 1/2-13 5/8-11 1-8inch unc Steel Black Flat Head Hexagon Screws
#4-40#6-32#8-32#10-24#10-321/4-203/8-161/2-135/8-11

Steel Flat Head Socket Cap Screw Grade 10.9 UNC Black Oxide

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Steel Flat Head Socket Cap Screw Grade 10.9 UNC Black Oxide Material: Steel Grade / Class: Grade 10.9 Standards: ASME Thread Series: UNC Finish / Coating: Black Oxide
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Carriage Bolt — ASME/ANSI B18.5 7/16-14 1/4-20 5/16-18 3/8-16 Unc Inch Zinc Plated Carbon Steel Grade 5 Round Head Square Neck Carriage Bolts
7/16-141/4-205/16-183/8-16

Carbon Steel Grade 5 Carriage Bolt UNC ASME B18.5 Zinc Plated

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Carbon Steel Grade 5 Carriage Bolt UNC ASME B18.5 Zinc Plated Material: Carbon Steel Grade / Class: Grade 5 Standards: ASME B18.5 Thread Series: UNC Finish / Coating: Zinc Plated...
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Button Head Socket Cap Screw — Round Head Allen Screws Carbon Steel 8.8 Grade Yellow Zinc Chromate UNC UNF ASME B18.6.3 Button Head Socket Fasteners Heavy Duty
11/21/41-1/21-3/82-1/23/43/83-1/4

Round Head Allen Screws Carbon Steel 8.8 Grade Yellow Zinc Chromate UNC UNF ASME B18.6.3 Button Head Socket Fasteners Heavy Duty

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Round Head Allen Screws Carbon Steel 8.8 Grade Yellow Zinc Chromate UNC UNF ASME B18.6.3 Button Head Socket Fasteners Heavy Duty Material: Carbon Steel Grade / Class: Grade 8.8 Standards:...
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Button Head Socket Cap Screw — Round Head Allen Socket Cap Screws Carbon Steel Yellow Zinc Plated Finish UNC UNF Class 2A ASME B18.6.3 Imperial Inch Threads
11/21/41-1/21-1/41-3/41-1/83/43/8

Round Head Allen Socket Cap Screws Carbon Steel Yellow Zinc Plated Finish UNC UNF Class 2A ASME B18.6.3 Imperial Inch Threads

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Round Head Allen Socket Cap Screws Carbon Steel Yellow Zinc Plated Finish UNC UNF Class 2A ASME B18.6.3 Imperial Inch Threads Material: Carbon Steel Grade / Class: Grade 8 Standards:...
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Button Head Socket Cap Screw — Dome Head Socket Screws Carbon Steel Gold Zinc Plated UNC Thread ASME B18.6.3 Round Head Allen Bolts Yellow Chromate Finished
11/21/41-7/81-3/82-1/22-1/43/43/8

Dome Head Socket Screws Carbon Steel Gold Zinc Plated UNC Thread ASME B18.6.3 Round Head Allen Bolts Yellow Chromate Finished

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Dome Head Socket Screws Carbon Steel Gold Zinc Plated UNC Thread ASME B18.6.3 Round Head Allen Bolts Yellow Chromate Finished Material: Carbon Steel Standards: ASME B18.6.3 Thread Series: UNC Finish...
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Button Head Socket Cap Screw — Round Head Allen Socket Screws Carbon Steel Yellow Zinc Plated UNC UNF ASME B18.6.3 Button Head Cap Screws
11/21/41-1/21-1/41-3/41-1/83/43/8

Round Head Allen Socket Screws Carbon Steel Yellow Zinc Plated UNC UNF ASME B18.6.3 Button Head Cap Screws

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Round Head Allen Socket Screws Carbon Steel Yellow Zinc Plated UNC UNF ASME B18.6.3 Button Head Cap Screws Material: Carbon Steel Standards: ASME B18.6.3 Thread Series: UNC, UNF Finish /...
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Button Head Socket Cap Screw — Round Head Socket Bolts Carbon Steel Zinc Plated Golden Yellow UNC UNF ASME B18.6.3 Industrial Automotive Furniture Screws
#4#811/21/42-1/22-1/43/43/8

Round Head Socket Bolts Carbon Steel Zinc Plated Golden Yellow UNC UNF ASME B18.6.3 Industrial Automotive Furniture Screws

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Round Head Socket Bolts Carbon Steel Zinc Plated Golden Yellow UNC UNF ASME B18.6.3 Industrial Automotive Furniture Screws Material: Carbon Steel Standards: ASME B18.6.3 Thread Series: UNC, UNF Finish /...
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Button Head Socket Cap Screw — Round Head Socket Screws Carbon Steel Yellow Zinc Plated UNC UNF ASME B18.6.3 Button Head Allen Bolts Industrial Fasteners
#1#811/21/41-1/21-1/43/43/8

Round Head Socket Screws Carbon Steel Yellow Zinc Plated UNC UNF ASME B18.6.3 Button Head Allen Bolts Industrial Fasteners

$0.00
Round Head Socket Screws Carbon Steel Yellow Zinc Plated UNC UNF ASME B18.6.3 Button Head Allen Bolts Industrial Fasteners Material: Carbon Steel Standards: ASME B18.6.3 Thread Series: UNC, UNF Finish...
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Button Head Socket Cap Screw — Round Head Socket Cap Screws Carbon Steel Yellow Zinc Plated UNC UNF ASME B18.6.3 #2 #4 #6 #8 #10 1/4 3/16 5/16 3/8 Inch Sizes
#2#4#6#8#101/43/165/163/8

Round Head Socket Cap Screws Carbon Steel Yellow Zinc Plated UNC UNF ASME B18.6.3 Inch Sizes

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Round Head Socket Cap Screws Carbon Steel Yellow Zinc Plated UNC UNF ASME B18.6.3 Inch Sizes Material: Carbon Steel Standards: ASME B18.6.3 Thread Series: UNC, UNF Finish / Coating: Yellow...
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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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