View All Sizes / Materials
1/2-20 UNF x 3 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - A4 Stainless Steel
Images shown for graphic representation

AccuScrews Components Official AccuScrews Product.

1/2-20 UNF x 3 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - A4 Stainless Steel

SEB-1/2-20-3-A4

. Order within 01 hours, 49 minutes. Details. Find out when you will get it.
Deliverd To Get it by
Australia Wednesday, May 24, 2017
Belgium Tuesday, May 23, 2017
Canada Wednesday, May 24, 2017
Europe (EU) Tuesday, May 23, 2017
India Wednesday, May 24, 2017
Ireland Tuesday, May 23, 2017
Mexico Wednesday, May 24, 2017
Rest of World Wednesday, May 24, 2017
United Kingdom Monday, May 22, 2017
United States Tuesday, May 23, 2017
United Kingdom (Saturday) Saturday, May 20, 2017

Available In Other Materials & Finishes


Key Features

  • A4 Stainless Steel, also known as marine grade or 316 Stainless Steel. Details.
  • Metric or Imperial?: Imperial
  • Thread Size (T): 1/2-20
  • Length (L): 3 inch
  • Hexagon Width A/F (H): 0.75 inch
  • View the full product specification.

Not available online. Talk to our engineers.
Eligible for 30 day returns. Details.

£5.24 / each.
Buy more & save
10 units£4.71 each10% Discount
20 units£4.22 each19% Discount
50 units£3.78 each28% Discount
100 units£3.38 each35% Discount
Manufactured to your order. Allow 15 working days to dispatch.
Buy online and we'll manufacture your components within 15 working days.
View Comparison

1/2-20 UNF x 3 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - A4 Stainless Steel Technical Specification

1/2-20 UNF x 3 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - A4 Stainless Steel Drawing
FinishSelf Colour
General Tolerance+/-0.13mm
Hexagon Length (K)0.323 inch
Hexagon Width A/F (H)0.75 inch
Length (L)3 inch
Manufacturing StandardANSI B18.2.1
MaterialA4 Stainless Steel
Metric or Imperial?Imperial
Pitch20 TPI
Screw Material SpecificationA2-70 Stainless Steel
Thread Length [Min] (B)1.25 inch
Thread Size (T)1/2-20

See a problem with this specification? Let us know.


1/2-20 UNF x 3 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - A4 Stainless Steel Description

The 1/2-20 UNF x 3 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - A4 Stainless Steel has the following features:

  • 1/2-20 Thread Size (T)
  • ANSI B18.2.1 Manufacturing Standard
  • 3 inch Length (L)
  • A4 Stainless Steel Material
  • 20 TPI Pitch
  • A2-70 Stainless Steel Screw Material Specification
  • 0.75 inch Hexagon Width A/F (H)
  • 0.323 inch Hexagon Length (K)
  • Self Colour Finish
  • +/-0.13mm General Tolerance
  • Imperial Metric or Imperial?
  • 1.25 inch Thread Length [Min] (B)

Other Key Information

Shipping Destinations:Worldwide.
View delivery information.
Weight Band (100 items):Over 5kg. Add to cart to calculcate exact weights.
Product First Available:Sunday, June 28, 2015
Stock Last Updated:02:10 PM
Sunday, April 30, 2017
Specification Last Updated:Wednesday, March 1, 2017
APC (Accu Product Code):SEB-1/2-20-3-A4
EAN13 (International Article No.):5054328168732
ASIN (Amazon Stock Identification No.):ASIN not defined.

3D Models

3D models are only available to registered customers.

To view and download models from our 3D library, please log in or sign up.

Product Certifications

Signed Certificate of Conformity
Signed Certificate of Conformity
RoHS Compliant
RoHS Compliant
REACH Compliant
REACH Compliant


Top