1/4-20 x 1/2 inch Phillips Countersunk Screws (ANSI B18.6.3) - Black Marine Stainless Steel (A4)

SIK-1/4-20-1/2-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): 1/2 inch
View Full Technical Specification.

Available In Other Materials & Finishes


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1/4-20 x 1/2 inch Phillips Countersunk Screws (ANSI B18.6.3) - Black Marine Stainless Steel (A4) Technical Specification

1/4-20 x 1/2 inch Phillips Countersunk Screws (ANSI B18.6.3) - Black Marine Stainless Steel (A4) Drawing
Countersunk Angle (CA)80-82 Degrees
Countersunk Length (H)0.153 inch
Drive#3
FinishMatte Black
General Tolerance+/- 0.13mm
Head Diameter (D)0.477 inch
Length (L)1/2 inch
Manufacturing StandardANSI B18.6.3
MaterialMarine Stainless Steel (A4)
Material SpecificationMarine Stainless Steel (A4)
Metric or Imperial?Imperial
Pitch20 UNC
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 x 1/2 inch Phillips Countersunk Screws (ANSI B18.6.3) - Black Marine Stainless Steel (A4) Description

The 1/4-20 x 1/2 inch Phillips Countersunk Screws (ANSI B18.6.3) - Black Marine Stainless Steel (A4) has the following features:

  • 1/4-20 Thread Size (T)
  • ANSI B18.6.3 Manufacturing Standard
  • 1/2 inch Length (L)
  • #3 Drive
  • Marine Stainless Steel (A4) Material
  • Marine Stainless Steel (A4) Material Specification
  • 20 UNC Pitch
  • Matte Black Finish
  • +/- 0.13mm General Tolerance
  • Imperial Metric or Imperial?
  • 0.477 inch Head Diameter (D)
  • 0.153 inch Countersunk Length (H)
  • 80-82 Degrees Countersunk Angle (CA)

Discover more about the Wkręty z łbem wpuszczalnym Imperial range.

Wkręty z łbem wpuszczalnym Imperial


Shipping Information

Shipping Destinations:Worldwide.
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Weight: 0.00kg.

Component History

Product First Available:Friday, January 22, 2016
Stock Last Updated:03:51 pm
Saturday, January 22, 2022
Specification Last Updated:Saturday, January 22, 2022

APC / Barcodes

APC (Accu Product Code):SIK-1/4-20-1/2-A4-BL
EAN13 (International Article No.):5057196264469
ASIN (Amazon Stock Identification No.):ASIN not defined.