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4-40 UNC x 1/4 inch Socket Countersunk Screws (ANSI B18.3) - Black Marine Stainless Steel (A4)

Accu Product Code (APC): SSK-4-40-1/4-A4-BL
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4-40 UNC x 1/4 inch Socket Countersunk Screws (ANSI B18.3) - Black Marine Stainless Steel (A4) Technical Specification

Technical Specification

SSK-4-40-1/4-A4-BL

Countersunk Angle
82 +/- 2 Degrees
Countersunk Length (H)
0.083 inch
Finish
Matte Black
General Tolerance
+/- 0.13mm
Head Diameter [max] (D)
0.255 inch
Head Diameter [min] (D)
0.218 inch
Hexagon A/F (A)
1/16 inch
Hexagon Depth (P)
0.055 inch
Manufacturing Standard
ANSI B18.3
Material
Marine Stainless Steel (A4)
Material Specification
Marine Stainless Steel (A4)
Metric or Imperial?
Imperial
Overall Length (L)
1/4 inch
Screw Thread Pitch
40 TPI
Thread Size (T)
4-40

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4-40 UNC x 1/4 inch Socket Countersunk Screws (ANSI B18.3) - Black Marine Stainless Steel (A4) Description

The 4-40 UNC x 1/4 inch Socket Countersunk Screws (ANSI B18.3) - Black Marine Stainless Steel (A4) has the following features:

  • 4-40 Thread Size (T)
  • 1/16 inch Hexagon A/F (A)
  • 0.055 inch Hexagon Depth (P)
  • ANSI B18.3 Manufacturing Standard
  • 1/4 inch Overall Length (L)
  • Marine Stainless Steel (A4) Material
  • Marine Stainless Steel (A4) Material Specification
  • 40 TPI Screw Thread Pitch
  • 82 +/- 2 Degrees Countersunk Angle
  • Matte Black Finish
  • +/- 0.13mm General Tolerance
  • Imperial Metric or Imperial?
  • 0.255 inch Head Diameter [max] (D)
  • 0.083 inch Countersunk Length (H)
  • 0.218 inch Head Diameter [min] (D)

Discover more about the Imperial Socket Countersunk Screws range.

Imperial Socket Countersunk Screws are designed for use alongside countersunk holes. The addition of a standard socket drive means that this type of screw can be installed using an Allen Key or Hexagon Drive Bit.

Sizing

Socket Countersunk Screws are manufactured in imperial thread sizes ranging from No. 0 up to 7/8 inch. lengths are available from 1/8 inch to 10 inch.

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Certifications
Certificate Of Conformity:
Supplied With Your Order
1 Year Warranty:
Supplied With Your Order
Shipping Information
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Weight (100 items):
0.039kg
Component History
Product First Available:
Sunday, June 28, 2015
Stock Last Updated:
12:06 PMSunday, May 29, 2022
Specification Last Updated:
Sunday, May 29, 2022
Barcodes
APC (Accu Product Code):
SSK-4-40-1/4-A4-BL
EAN13 (International Article No.):
5054328973510
ASIN (Amazon Stock Identification No.):
ASIN not defined.
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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