1/4-20 UNC x 3.1/2 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - Black Marine Stainless Steel (A4)

SEB-1/4-20-3.1/2-A4-BL

Key Features

  • 1 Year Extended Warranty.
  • Free Technical Support From Our Engineers.
  • Custom Dimensions Available Through Our Custom Manufacture Service.
  • Thread Size (T): 1/4-20
  • Length (L): 3.1/2 inch
View Full Technical Specification.

Available In Other Materials & Finishes


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1/4-20 UNC x 3.1/2 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - Black Marine Stainless Steel (A4) Technical Specification

1/4-20 UNC x 3.1/2 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - Black Marine Stainless Steel (A4) Drawing
FinishMatte Black
General Tolerance+/-0.13mm
Hexagon Length (H)0.163 inch
Hexagon Width A/F (J)0.438 inch
Length (L)3.1/2 inch
Manufacturing StandardANSI B18.2.1
MaterialMarine Stainless Steel (A4)
Metric or Imperial?Imperial
Pitch20 TPI
Screw Material SpecificationStainless Steel (A2)
Thread Length (E)0.750-1 inch
Thread Size (T)1/4-20

Product Certifications

Certificate of Conformity Included
Certificate of Conformity Included
RoHS Certified
RoHS Certified
REACH Certified
REACH Certified
ISO9001
ISO9001
Quality Approved

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1/4-20 UNC x 3.1/2 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - Black Marine Stainless Steel (A4) Description

The 1/4-20 UNC x 3.1/2 inch Imperial Plain Hexagon Bolts (ANSI B18.2.1) - Black Marine Stainless Steel (A4) has the following features:

  • 1/4-20 Thread Size (T)
  • ANSI B18.2.1 Manufacturing Standard
  • 3.1/2 inch Length (L)
  • 0.750-1 inch Thread Length (E)
  • 0.163 inch Hexagon Length (H)
  • Marine Stainless Steel (A4) Material
  • 20 TPI Pitch
  • Stainless Steel (A2) Screw Material Specification
  • Matte Black Finish
  • +/-0.13mm General Tolerance
  • Imperial Metric or Imperial?
  • 0.438 inch Hexagon Width A/F (J)

Discover more about the Imperial Plain Hexagon Bolts range.

Imperial Plain Hexagon Bolts are functionally identical to Accu's standard range of Hexagon Bolts. This type of bolt features unthreaded portion below the head, which serves as an unthreaded dowel to strengthen the overall construction of the bolt. The unthreaded section of a Plain Hexagon Bolt makes the bolt more resistant to shear forces.

Sizing

Plain Hexagon Bolts are available in imperial thread sizes of between 1/4 inch and 1 inch. Lengths range from 1 inch to 20 inch.


Shipping Information

Shipping Destinations:Worldwide.
View delivery information.
Weight: 0.02kg.

Component History

Product First Available:Sunday, June 28, 2015
Stock Last Updated:08:51 am
Tuesday, January 25, 2022
Specification Last Updated:Tuesday, January 25, 2022

APC / Barcodes

APC (Accu Product Code):SEB-1/4-20-3.1/2-A4-BL
EAN13 (International Article No.):5054328993532
ASIN (Amazon Stock Identification No.):ASIN not defined.