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1/2-20 x 4.1/2 inch UNF Cap Head Screws (ANSI B18.3) - Black A4 Stainless Steel
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1/2-20 x 4.1/2 inch UNF Cap Head Screws (ANSI B18.3) - Black A4 Stainless Steel

SSC-1/2-20-4.1/2-A4-BL By AccuScrews
. Order within 07 hours, 27 minutes. Details. Find out when you will get it.
Location Get it by
Australia Friday, March 10, 2017
Canada Friday, March 10, 2017
Europe (EU) Thursday, March 9, 2017
India Friday, March 10, 2017
Ireland Thursday, March 9, 2017
Mexico Friday, March 10, 2017
Rest of World Friday, March 10, 2017
United Kingdom Wednesday, March 8, 2017
United States Thursday, March 9, 2017
United Kingdom (Saturday) Saturday, March 11, 2017

Eligible for 30 day returns. Details.

Key Features


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1/2-20 x 4.1/2 inch UNF Cap Head Screws (ANSI B18.3) - Black A4 Stainless Steel Technical Specification

1/2-20 x 4.1/2 inch UNF Cap Head Screws (ANSI B18.3) - Black A4 Stainless Steel Drawing
FinishChemical Matt Black
Fully ThreadedNo
General Tolerances+/- 0.13mm
Head Diameter (D)0.75 inch
Head Length (H)0.5 inch
Hexagon A/F (J)3/8 inch
Hexagon Depth (P)0.245 inch
Length (L)4.1/2 inch
Manufacturing StandardANSI B18.3
MaterialA4 Stainless Steel - Black
Material SpecificationA4 Stainless Steel - Black
Metric or Imperial?Imperial
Screw Thread Pitch20 TPI
Thread Length (Max)1.50 - 2.38 inch
Thread Size (T)1/2-20

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1/2-20 x 4.1/2 inch UNF Cap Head Screws (ANSI B18.3) - Black A4 Stainless Steel Description

The 1/2-20 x 4.1/2 inch UNF Cap Head Screws (ANSI B18.3) - Black A4 Stainless Steel has the following features:

  • 1/2-20 Thread Size (T)
  • 0.5 inch Head Length (H)
  • 0.245 inch Hexagon Depth (P)
  • ANSI B18.3 Manufacturing Standard
  • 4.1/2 inch Length (L)
  • 3/8 inch Hexagon A/F (J)
  • +/- 0.13mm General Tolerances
  • No Fully Threaded
  • A4 Stainless Steel - Black Material
  • A4 Stainless Steel - Black Material Specification
  • 20 TPI Screw Thread Pitch
  • Chemical Matt Black Finish
  • Imperial Metric or Imperial?
  • 0.75 inch Head Diameter (D)
  • 1.50 - 2.38 inch Thread Length (Max)

Other Key Information

Shipping Destinations:Worldwide.
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Weight: Not defined.
Product First Available:Sunday, June 28, 2015
Stock Last Updated:08:32 AM
Monday, February 20, 2017
Specification Last Updated:Monday, February 13, 2017
APC (Accu Product Code):SSC-1/2-20-4.1/2-A4-BL
EAN13 (International Article No.):5054328966758
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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