View All Sizes / Materials
4-40 UNC x 1/4 inch Socket Countersunk Screws (ANSI B18.3) - A4 Stainless Steel
Images shown for graphic representation

AccuScrews Components Official AccuScrews Product.

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

SSK-4-40-1/4-A4

. Order within 1 days, 21 hours, 30 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.

£0.87 / each.
Buy more & save
20 units£0.78 each10% Discount
40 units£0.69 each21% Discount
100 units£0.62 each29% Discount
200 units£0.55 each37% Discount
Manufactured to your order. Allow 15 working days to dispatch.
Buy online and we'll manufacture your components within 15 working days.
View Comparison

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

4-40 UNC x 1/4 inch Socket Countersunk Screws (ANSI B18.3) - A4 Stainless Steel Drawing
Countersunk Length (H)0.083 inch
FinishSelf Colour
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
Material SpecificationA4-70 Stainless Steel
Metric or Imperial?Imperial
Overall Length (L)1/4 inch
Screw Thread Pitch40 TPI
Thread Size (T)4-40

See a problem with this specification? Let us know.


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

The 4-40 UNC x 1/4 inch Socket Countersunk Screws (ANSI B18.3) - 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
  • 1/4 inch Overall Length (L)
  • A4 Stainless Steel Material
  • A4-70 Stainless Steel Material Specification
  • 40 TPI Screw Thread Pitch
  • Self Colour 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 Band (100 items):Over 5kg. Add to cart to calculcate exact weights.
Product First Available:Sunday, June 28, 2015
Stock Last Updated:06:29 PM
Monday, May 22, 2017
Specification Last Updated:Wednesday, October 12, 2016
APC (Accu Product Code):SSK-4-40-1/4-A4
EAN13 (International Article No.):5054328147324
ASIN (Amazon Stock Identification No.):ASIN not defined.

3D Models

3D models are only available to registered customers.

To view and download models from our 3D library, please log in or sign up.

Product Certifications

Signed Certificate of Conformity
Signed Certificate of Conformity
RoHS Compliant
RoHS Compliant
REACH Compliant
REACH Compliant


Top