M4 x 20mm T20 Torx Flanged Button Screws (ISO 7380-2) - Stainless Steel (A2)

SHBF-M4-20-A2

Key Features

  • M4 Metric Thread Size (4mm)
  • A2 Stainless Steel, also known as 18-8 or 304 Stainless Steel. Details.
  • Thread Size (T): M4 (4mm)
  • Length (L): 20mm
  • Torx Size: T20
View Full Technical Specification.

Available In Other Materials & Finishes


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M4 x 20mm T20 Torx Flanged Button Screws (ISO 7380-2) - Stainless Steel (A2) Technical Specification

M4 x 20mm T20 Torx Flanged Button Screws (ISO 7380-2) - Stainless Steel (A2) Drawing
FinishNatural
Flange Diameter [max] (D)9.4mm
Flange Length (FL)0.8mm
Head Length [max] (H)2.2mm
Length (L)20mm
Manufacturing StandardISO 7380-2
MaterialStainless Steel (A2)
Material SpecificationStainless Steel (A2)
Metric or Imperial?Metric
Screw Thread Pitch0.7mm
Thread Size (T)M4 (4mm)
Torx SizeT20

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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M4 x 20mm T20 Torx Flanged Button Screws (ISO 7380-2) - Stainless Steel (A2) Description

The M4 x 20mm T20 Torx Flanged Button Screws (ISO 7380-2) - Stainless Steel (A2) has the following features:

  • M4 (4mm) Thread Size (T)
  • ISO 7380-2 Manufacturing Standard
  • 20mm Length (L)
  • T20 Torx Size
  • 0.8mm Flange Length (FL)
  • 2.2mm Head Length [max] (H)
  • Stainless Steel (A2) Material
  • Stainless Steel (A2) Material Specification
  • 0.7mm Screw Thread Pitch
  • Natural Finish
  • Metric Metric or Imperial?
  • 9.4mm Flange Diameter [max] (D)

Discover more about the Torx Flanged Button Screws range

Accu’s Torx Flanged Button Screws, also known as Star Flanged Button Screws, are fasteners which feature an aesthetically pleasing rounded head. The use of a Torx drive increases the surface area between driver and inner faces of the hexalobular drive and avoids cam-out. The addition of a flange negates the need for an additional washer and evenly distributes the load applied by the threaded fastener in order to prevent localised stress.

The Torx drive of these fasteners makes them suitable for use with Accu's selection of Torx Drive Bits which are supplied in drive sizes from T6 to T55. 

Torx Button Machine Screw Variants

Accu also stock a range of Torx Button Screws without a flanged head which feature a smaller head diameter and can be used with our range of Flat Washers. These variants can be bought separately or in bulk in Accu’s pre-packed fastener kits.

Torx Flanged Button Screw Materials

The Star Flanged Button Screws are manufactured in two different stainless steels; A2 Stainless Steel and A4 Marine Grade Stainless Steel. In addition to the natural finish, these screws are also available in Matte Black or with Thread Locking.  

Metric Sizes Available 

The range of Metric Torx Flanged Button Screws are available in thread sizes M2 up to M12, and lengths ranging from 3mm to 120mm. This range is manufactured according to ISO 7380-2 standard.


Shipping Information

Shipping Destinations:Worldwide.
View delivery information.
Weight Band (100 items):Between 0.1kg and 0.25kg. Add to cart to calculate exact weights.

Component History

Product First Available:Thursday, January 21, 2016
Stock Last Updated:11:26 pm
Friday, December 3, 2021
Specification Last Updated:Friday, December 3, 2021

APC / Barcodes

APC (Accu Product Code):SHBF-M4-20-A2
EAN13 (International Article No.):5057196210879
ASIN (Amazon Stock Identification No.):ASIN not defined.