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4-40 UNC x 5/16 inch Socket Countersunk Screws (ANSI B18.3) - Black A4 Stainless Steel
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AccuScrews Components Official AccuScrews Product.

4-40 UNC x 5/16 inch Socket Countersunk Screws (ANSI B18.3) - Black A4 Stainless Steel

SSK-4-40-5/16-A4-BL

. Order within 1 days, 07 hours, 29 minutes. Details. Find out when you will get it.
Deliverd To Get it by
Australia Friday, June 16, 2017
Belgium Thursday, June 15, 2017
Canada Friday, June 16, 2017
Europe (EU) Thursday, June 15, 2017
India Friday, June 16, 2017
Ireland Thursday, June 15, 2017
Mexico Friday, June 16, 2017
Rest of World Friday, June 16, 2017
United Kingdom Wednesday, June 14, 2017
United States Thursday, June 15, 2017
United Kingdom (Saturday) Saturday, June 17, 2017

Available In Other Materials & Finishes


Key Features


Not available online. Talk to our engineers.
Eligible for 30 day returns. Details.

£0.78 / each.
Buy more & save
200 units£0.60 each23% Discount
400 units£0.53 each32% Discount
800 units£0.47 each40% Discount
2000 units£0.41 each47% Discount
Manufactured to your order. Allow 11 working days to dispatch.
Buy online and we'll manufacture your components within 11 working days.
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4-40 UNC x 5/16 inch Socket Countersunk Screws (ANSI B18.3) - Black A4 Stainless Steel Technical Specification

4-40 UNC x 5/16 inch Socket Countersunk Screws (ANSI B18.3) - Black A4 Stainless Steel Drawing
Countersunk Length (H)0.083 inch
FinishChemical Matte Black
General Tolerance+/- 0.13mm
Head Diameter [max] (D)0.255 inch
Hexagon A/F (A)1/16 inch
Hexagon Depth (P)0.055 inch
Manufacturing StandardANSI B18.3
MaterialA4 Stainless Steel - Black
Material SpecificationA4-70 Stainless Steel
Metric or Imperial?Imperial
Overall Length (L)5/16 inch
Screw Thread Pitch40 TPI
Thread Size (T)4-40

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4-40 UNC x 5/16 inch Socket Countersunk Screws (ANSI B18.3) - Black A4 Stainless Steel Description

The 4-40 UNC x 5/16 inch Socket Countersunk Screws (ANSI B18.3) - Black A4 Stainless Steel 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
  • 5/16 inch Overall Length (L)
  • A4 Stainless Steel - Black Material
  • A4-70 Stainless Steel Material Specification
  • 40 TPI Screw Thread Pitch
  • Chemical Matte Black Finish
  • +/- 0.13mm General Tolerance
  • Imperial Metric or Imperial?
  • 0.255 inch Head Diameter [max] (D)
  • 0.083 inch Countersunk Length (H)

Other Key Information

Shipping Destinations:Worldwide.
View delivery information.
Weight: 0.47kg.
Product First Available:Sunday, June 28, 2015
Stock Last Updated:08:30 AM
Sunday, May 28, 2017
Specification Last Updated:Wednesday, October 12, 2016
APC (Accu Product Code):SSK-4-40-5/16-A4-BL
EAN13 (International Article No.):5054328973527
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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