G8 YelZn Hex Bolt UNC B7 C/Steel HalfThd ASME Heavy amse 18.2.1

Hex Head Bolt manufactured in Carbon Steel to ASME B18.2.1. Choose a size and length below, then send your quantity and documentation requirements for quotation.

Material: Carbon Steel
Thread series: UNC
Finish: Yellow Zinc
Drive: External Hex

Quoted to orderSend one complete specification.

Size · length · quantity · finish · delivery target

Nominal thread

Length

Quantity

SKU HHB-CS-G8-UNC-1-4-20

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Catalog recordHF-P0269-UNC

Thread systemUNC

Configurations4

Supply modeMade to specification

Sizes & configurations

Choose diameter and length.

Browse the listed sizes. Where no length is listed, include the required overall length with your RFQ. Thread details and dimensions are confirmed during quotation.

Nominal threadRecorded lengthsRows

1/4-201/4 · 20 TPI

Length confirmed with RFQ

3/8-163/8 · 16 TPI

Length confirmed with RFQ

1/2-131/2 · 13 TPI

Length confirmed with RFQ

5/8-115/8 · 11 TPI

Length confirmed with RFQ

Need a size not shown? Send the standard, thread designation and drawing. Custom and non-standard configurations are reviewed individually.

Technical dossier

Specification at a glance.

Use these specifications for product selection. Final tolerances, dimensions and inspection requirements are confirmed before production.

Product code: HF-P0269-UNC
Product type: Hex Head Bolt
Material: Carbon Steel
Standard: ASME B18.2.1
Grade / class: Grade 8
Finish: Yellow Zinc
Thread series: UNC
Drive type: External Hex

Engineering review before quotation

Specify it once. Quote it correctly.

Send the size, length, quantity and any drawing or inspection requirement. We will confirm manufacturability, MOQ and lead time before you commit.

Request a Quote Send Drawing

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Specify it once. Quote it correctly.