View All Sizes / Materials
1/4-20 UNC x 1.3/8 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - Brass
Images shown for graphic representation

1/4-20 UNC x 1.3/8 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - Brass

SEB-1/4-20-1.3/8-BR

. Order within 03 hours, 25 minutes. Details. Find out when you will get it.
Delivered To Get it by
Australia Friday, November 24, 2017
Austria Thursday, November 23, 2017
Belgium Thursday, November 23, 2017
Canada Friday, November 24, 2017
Czech Republic Thursday, November 23, 2017
Denmark Thursday, November 23, 2017
Europe (EU) Thursday, November 23, 2017
France Thursday, November 23, 2017
Germany Thursday, November 23, 2017
Hong Kong Friday, November 24, 2017
India Friday, November 24, 2017
Indonesia Friday, November 24, 2017
Ireland Thursday, November 23, 2017
Malaysia Friday, November 24, 2017
Mexico Friday, November 24, 2017
Netherlands Thursday, November 23, 2017
New Zealand Friday, November 24, 2017
Norway Thursday, November 23, 2017
Philippines Friday, November 24, 2017
Rest of World Friday, November 24, 2017
Singapore Friday, November 24, 2017
South Africa Friday, November 24, 2017
Sweden Thursday, November 23, 2017
Switzerland Thursday, November 23, 2017
Taiwan Thursday, November 23, 2017
Turkey Thursday, November 23, 2017
United Arab Emirates Friday, November 24, 2017
United Kingdom Wednesday, November 22, 2017
United States Thursday, November 23, 2017
United Kingdom (Saturday) Saturday, November 25, 2017

Available In Other Materials & Finishes


Key Features

  • Metric or Imperial?: Imperial
  • Thread Size (T): 1/4-20
  • Length (L): 1.3/8 inch
  • Hexagon Width A/F (H): 0.438 inch
  • Material: Brass
View the full technical specification
Not available online. Talk to our engineers.
Eligible for 30 day returns. Details.
£3.34 / each.
Buy more & save
250 units£2.00 each40% Discount
500 units£1.57 each53% Discount
1000+ unitsGet A Quote
Manufactured to your order. Allow 20 working days to dispatch.
Buy online and we'll manufacture your components within 20 working days.
View Comparison
AccuScrews Components Official AccuScrews Product.

1/4-20 UNC x 1.3/8 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - Brass Technical Specification

1/4-20 UNC x 1.3/8 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - Brass Drawing
FinishSelf Colour
General Tolerance+/-0.13mm
Hexagon Length (K)0.163 inch
Hexagon Width A/F (H)0.438 inch
Length (L)1.3/8 inch
Manufacturing StandardANSI B18.2.1
MaterialBrass
Metric or Imperial?Imperial
Pitch20 TPI
Screw Material SpecificationCZ121 Brass
Thread Length [Min] (B)0.75 inch
Thread Size (T)1/4-20

See a problem with this specification? Let us know.


Product Certifications

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

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.


1/4-20 UNC x 1.3/8 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - Brass Description

The 1/4-20 UNC x 1.3/8 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - Brass has the following features:

  • 1/4-20 Thread Size (T)
  • ANSI B18.2.1 Manufacturing Standard
  • 1.3/8 inch Length (L)
  • Brass Material
  • 20 TPI Pitch
  • CZ121 Brass Screw Material Specification
  • 0.438 inch Hexagon Width A/F (H)
  • 0.163 inch Hexagon Length (K)
  • Self Colour Finish
  • +/-0.13mm General Tolerance
  • Imperial Metric or Imperial?
  • 0.75 inch Thread Length [Min] (B)

Other Key Information

Shipping Destinations:Worldwide.
View delivery information.
Weight: 0.01kg.
Product First Available:Sunday, June 28, 2015
Stock Last Updated:12:34 PM
Tuesday, October 24, 2017
Specification Last Updated:Friday, October 13, 2017
APC (Accu Product Code):SEB-1/4-20-1.3/8-BR
EAN13 (International Article No.):5057195241461
ASIN (Amazon Stock Identification No.):ASIN not defined.

Top