M4 x 55mm T20 Torx Full Thread Cap Head Screws (ISO 14579) - Black Marine Stainless Steel (A4)

SHCF-M4-55-A4-BL

Key Features

  • Thread Size (T): M4 (4mm)
  • Length (L): 55mm
  • Fully Threaded: Yes
  • Material: Marine Stainless Steel (A4)
  • Finish: Matte Black
View Full Technical Specification.

Available In Other Materials & Finishes


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M4 x 55mm T20 Torx Full Thread Cap Head Screws (ISO 14579) - Black Marine Stainless Steel (A4) Technical Specification

M4 x 55mm T20 Torx Full Thread Cap Head Screws (ISO 14579) - Black Marine Stainless Steel (A4) Drawing
FinishMatte Black
Fully ThreadedYes
Head Diameter (D)7mm
Head Length (H)4mm
Length (L)55mm
Manufacturing StandardISO 14579
MaterialMarine Stainless Steel (A4)
Material SpecificationMarine Stainless Steel (A4)
Minimum Thread Length55mm
Screw Thread Pitch0.7mm
Socket Depth [min] (P)1.42mm
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 55mm T20 Torx Full Thread Cap Head Screws (ISO 14579) - Black Marine Stainless Steel (A4) Description

The M4 x 55mm T20 Torx Full Thread Cap Head Screws (ISO 14579) - Black Marine Stainless Steel (A4) has the following features:

  • M4 (4mm) Thread Size (T)
  • 4mm Head Length (H)
  • ISO 14579 Manufacturing Standard
  • 55mm Length (L)
  • T20 Torx Size
  • Yes Fully Threaded
  • Marine Stainless Steel (A4) Material
  • Marine Stainless Steel (A4) Material Specification
  • 0.7mm Screw Thread Pitch
  • Matte Black Finish
  • 7mm Head Diameter (D)
  • 1.42mm Socket Depth [min] (P)
  • 55mm Minimum Thread Length

Discover more about the Torx Cap Head Screws range

Torx Cap Screws feature a hexalobular Torx drive (also commonly known as star drive or 6lobe), which aids torque transmission and prevents cam-out. Torx Cap Head Screws Feature a cylindrical head, and are commonly used in a wide number of applications. All of Accu’s Hexalobular Cap Screws are compatible with our Hexalobular Torx Drive Bits.

All Hexalobular Cap Screws are manufactured in accordance with ISO 14579, and are precision machined to achieve a general tolerance of ±0.13mm. Accu's fasteners have a maximum thread length, which will be specified in the technical specification of each individual component.

Metric Torx Cap Screw Kits

Accu now stocks Torx Cap Screws in high-quality packed screw kits. Accu's Torx Cap Screw Kits feature 720 precision components, including a range of different sizes of screws, nuts and washers in Micro (M2, M2.5 & M3) and Small (M4, M5 & M6) standard metric sizes. Our Torx Cap Screw Accu ProKits are available in A2 and marine grade A4 Stainless Steel.

Torx Captive Fasteners

Captive modification is available on a range of Accu's Fasteners. As part of our Precision Captive Screw range, our Torx Cap Head Captive Screws are specially designed to minimise cam-out and increase tool life, thanks to the popular Torx drive, whilst helping to ensure screws are safely retained to fixtures in housing assemblies thanks to the precisely machine unthreaded shank. These components are often used in machinery applications to help prevent loss of fasteners and ensure compliance with EU safety regulations.

Low Head Torx Cap Screws

Accu's range also includes a low-profile variant of this component, which can be found within our Torx Low Cap Head Screws range.

Stainless Steel Torx Cap Screws

Torx Cap Head Screws are manufactured in A2 and A4 Marine Stainless Steel. Features such as Thread Locking Patches and Chemical Blackening can be applied to all Stainless Steel components, and additional materials and finishes can be made available on request.

PEEK Torx Cap Screws

Accu's Torx Drive Cap Screws are also available in Polyether ether ketone (PEEK) an engineering thermoplastic, designed for high-performance applications.

Metric Torx Cap Head Screws

Hexalobular Torx Cap Screws are available in metric sizes, with thread sizes ranging from M2 to M8, and lengths between 3.00mm and 60.00mm. Custom sizes and bespoke components can also be custom manufactured on request.


Shipping Information

Shipping Destinations:Worldwide.
View delivery information.
Weight: 0.01kg.

Component History

Product First Available:Friday, September 29, 2017
Stock Last Updated:11:40 pm
Tuesday, September 21, 2021
Specification Last Updated:Thursday, September 16, 2021

APC / Barcodes

APC (Accu Product Code):SHCF-M4-55-A4-BL
EAN13 (International Article No.):5057196978397
ASIN (Amazon Stock Identification No.):ASIN not defined.