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1/4-28 UNF x 3.1/2 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - Thread Locking A4 Stainless Steel
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AccuScrews Components Official AccuScrews Product.

1/4-28 UNF x 3.1/2 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - Thread Locking A4 Stainless Steel

SEB-1/4-28-3.1/2-A4-R360

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Deliverd To Get it by
Australia Thursday, August 17, 2017
Austria Wednesday, August 16, 2017
Belgium Wednesday, August 16, 2017
Canada Thursday, August 17, 2017
Czech Republic Wednesday, August 16, 2017
Denmark Wednesday, August 16, 2017
Europe (EU) Wednesday, August 16, 2017
France Wednesday, August 16, 2017
Germany Wednesday, August 16, 2017
Hong Kong Thursday, August 17, 2017
India Thursday, August 17, 2017
Indonesia Thursday, August 17, 2017
Ireland Wednesday, August 16, 2017
Malaysia Thursday, August 17, 2017
Mexico Thursday, August 17, 2017
Netherlands Wednesday, August 16, 2017
New Zealand Thursday, August 17, 2017
Norway Wednesday, August 16, 2017
Philippines Thursday, August 17, 2017
Rest of World Thursday, August 17, 2017
Singapore Thursday, August 17, 2017
South Africa Thursday, August 17, 2017
Sweden Wednesday, August 16, 2017
Switzerland Wednesday, August 16, 2017
Taiwan Wednesday, August 16, 2017
Turkey Wednesday, August 16, 2017
United Arab Emirates Thursday, August 17, 2017
United Kingdom Tuesday, August 15, 2017
United States Wednesday, August 16, 2017
United Kingdom (Saturday) Saturday, August 19, 2017

Available In Other Materials & Finishes


Key Features

  • Metric or Imperial?: Imperial
  • Thread Size (T): 1/4-28
  • Length (L): 3.1/2 inch
  • Hexagon Width A/F (H): 0.438 inch
  • Material: A4 Stainless Steel - Thread Locking
  • View the full product specification.

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Eligible for 30 day returns. Details.

£2.43 / each.
Buy more & save
50 units£2.11 each13% Discount
100 units£1.86 each23% Discount
200 units£1.65 each32% Discount
500 units£1.47 each40% Discount
Manufactured to your order. Allow 15 working days to dispatch.
Buy online and we'll manufacture your components within 15 working days.
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1/4-28 UNF x 3.1/2 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - Thread Locking A4 Stainless Steel Technical Specification

1/4-28 UNF x 3.1/2 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - Thread Locking A4 Stainless Steel Drawing
FinishSelf Colour
General Tolerance+/-0.13mm
Hexagon Length (K)0.163 inch
Hexagon Width A/F (H)0.438 inch
Length (L)3.1/2 inch
Manufacturing StandardANSI B18.2.1
MaterialA4 Stainless Steel - Thread Locking
Metric or Imperial?Imperial
Pitch28 TPI
Screw Material SpecificationA4-70 Stainless Steel
Thread Length [Min] (B)0.75 inch
Thread Size (T)1/4-28

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1/4-28 UNF x 3.1/2 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - Thread Locking A4 Stainless Steel Description

The 1/4-28 UNF x 3.1/2 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - Thread Locking A4 Stainless Steel has the following features:

  • 1/4-28 Thread Size (T)
  • ANSI B18.2.1 Manufacturing Standard
  • 3.1/2 inch Length (L)
  • A4 Stainless Steel - Thread Locking Material
  • 28 TPI Pitch
  • A4-70 Stainless Steel 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.
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Weight: 0.02kg.
Product First Available:Sunday, June 28, 2015
Stock Last Updated:09:53 AM
Monday, July 24, 2017
Specification Last Updated:Wednesday, March 1, 2017
APC (Accu Product Code):SEB-1/4-28-3.1/2-A4-R360
EAN13 (International Article No.):5057195555940
ASIN (Amazon Stock Identification No.):ASIN not defined.

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Product Certifications

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


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