HF-P0208-UNCRFQ only

Hex Head Bolt — 316 Stainless Steel Hexagon Head Bolt ASME B18.2.1 UNC 1/4-20 5/16-18 3/8-16 1/2-13 7/8-9 1-8 Plain Finish A4-80 Full Thread

Product visual referenceDimensions confirmed with quotation

ASME B18.2.1 · A4-80

316 Stainless Steel Hexagon Head Bolt ASME B18.2.1 UNC Plain Finish A4-80 Full Thread

Hex Head Bolt manufactured in 316 Stainless Steel to ASME B18.2.1. Choose a size and length below, then send your quantity and documentation requirements for quotation.

Material: 316 Stainless Steel
Thread series: UNC
Finish: Plain
Drive: External Hex

Quoted to orderSend one complete specification.

Size · length · quantity · finish · delivery target

Nominal thread

Length

Quantity

SKU HHB-316-A480-UNC-1-4-20X22MM

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Catalog recordHF-P0208-UNC

Thread systemUNC

Configurations54

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

22 mm28 mm25 mm65 mm75 mm70 mm8 in5 in3 in

9

5/16-185/16 · 18 TPI

22 mm28 mm25 mm65 mm75 mm70 mm8 in5 in3 in

9

3/8-163/8 · 16 TPI

22 mm28 mm25 mm65 mm75 mm70 mm8 in5 in3 in

9

1/2-131/2 · 13 TPI

22 mm28 mm25 mm65 mm75 mm70 mm8 in5 in3 in

9

7/8-97/8 · 9 TPI

22 mm28 mm25 mm65 mm75 mm70 mm8 in5 in3 in

9

1-81 · 8 TPI

22 mm28 mm25 mm65 mm75 mm70 mm8 in5 in3 in

9

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-P0208-UNC
Product type: Hex Head Bolt
Material: 316 Stainless Steel
Standard: ASME B18.2.1
Grade / class: A4-80
Finish: Plain
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