1/2-20 UNF x 3.3/4 inch Imperial Plain Hex Bolts (ANSI B18.2.1) - Black Marine Stainless Steel (316)

SEB-1/2-20-3.3/4-A4-BL

Key Features

  • Thread Size (T): 1/2-20
  • Length (L): 3.3/4 inch
  • Hexagon Width A/F (J): 0.75 inch
  • Material: Marine Stainless Steel (A4)
  • Finish: Matte Black
View Full Technical Specification.

Available In Other Materials & Finishes


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1/2-20 UNF x 3.3/4 inch Imperial Plain Hex Bolts (ANSI B18.2.1) - Black Marine Stainless Steel (316) Technical Specification

1/2-20 UNF x 3.3/4 inch Imperial Plain Hex Bolts (ANSI B18.2.1) - Black Marine Stainless Steel (316) Drawing
FinishMatte Black
General Tolerance+/-0.13mm
Hexagon Length (H)0.323 inch
Hexagon Width A/F (J)0.75 inch
Length (L)3.3/4 inch
Manufacturing StandardANSI B18.2.1
MaterialMarine Stainless Steel (316)
Metric or Imperial?Imperial
Pitch20 TPI
Screw Material SpecificationStainless Steel (18-8 / 304)
Thread Length (E)1.250-1.500 inch
Thread Size (T)1/2-20

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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1/2-20 UNF x 3.3/4 inch Imperial Plain Hex Bolts (ANSI B18.2.1) - Black Marine Stainless Steel (316) Description

The 1/2-20 UNF x 3.3/4 inch Imperial Plain Hex Bolts (ANSI B18.2.1) - Black Marine Stainless Steel (316) has the following features:

  • 1/2-20 Thread Size (T)
  • ANSI B18.2.1 Manufacturing Standard
  • 3.3/4 inch Length (L)
  • 1.250-1.500 inch Thread Length (E)
  • 0.323 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?
  • 0.75 inch Hexagon Width A/F (J)

Discover more about the Imperial Plain Hex Bolts range

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Shipping Information

Shipping Destinations:Worldwide.
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Weight: 0.11kg.

Component History

Product First Available:Sunday, June 28, 2015
Stock Last Updated:06:40 pm
Wednesday, December 1, 2021
Specification Last Updated:Wednesday, December 1, 2021

APC / Barcodes

APC (Accu Product Code):SEB-1/2-20-3.3/4-A4-BL
EAN13 (International Article No.):5054328994959
ASIN (Amazon Stock Identification No.):ASIN not defined.