M4 x 20mm Cap Head Screws (DIN 912) - High Tensile Steel (12.9) Description
The M4 x 20mm Cap Head Screws (DIN 912) - High Tensile Steel (12.9) has the following features:
M4 (4mm) Thread Size (T)
4mm Head Length (H)
2mm Hexagon Depth (P)
DIN 912 Manufacturing Standard
20mm Length (L)
3mm Hexagon A/F (J)
+/- 0.13mm General Tolerances
No Fully Threaded
High Tensile Steel (12.9) Material
High Tensile Steel (12.9) Material Specification
0.7mm Screw Thread Pitch
7mm Head Diameter (D)
18mm Thread Length (Max)
20mm Thread Length (Reference)
2.1mm Shank Length (U) [Max]
Discover more about the Metric Socket Cap Head Screws range.
Socket Cap Head Screws feature a socket for use with a Hex Key Accu's range of Cap Screws are manufactured in accordance with industry standards. Socket versions are part of Accu's extensive range of Precision Screws. These fasteners are manufactured using a high-precision machining process, allowing tolerances of ±0.13mm to be achieved. Additional materials, thread sizes and lengths are available on request.
Certain products within this range are fully threaded, and others feature an unthreaded portion below the head, which is detailed in each individual product specification. If a larger unthreaded portion is required, Accu's range of Socket Shoulder Screws range may be more suitable.
Metric Socket Cap Head Screw Kits
These components are now available to buy in high quality screw kit packs. Accu's Cap Screw Kits are available in Micro Thread Sizes (M2, M2.5 and M3) or Small Thread Sizes (M4, M5 and M6) in A2 Stainless Steel and A4 Marine Grade Stainless Steel. Accu ProKits are the Ultimate Fastener Kits, built for versatility with professionals and hobbyists in mind.
A number of Accu's Metric & Imperial Socket Captive Fasteners are also available to be modified to feature a precisely machined unthreaded section, affording a retaining capability. Captive fasteners are used to provide a secure fixture and help to prevent damage or loss of screws in a housing assembly. Accu's range of Cap Head Captive Screws are designed to aid compliance with EU Safety Directives.
Accu can also offer Vented Screws, which are a specially modified variant of this component.
Socket Cap Screws within this range are available in a wide selection of materials, including A2, A4, A4-80 and Bumax Stainless Steel, 12.9 Hardened Steel, Aluminium, Titanium, and PEEK Thermoplastic.
Metric Cap Head Screws
Metric Socket Cap Screws are available in sizes M1.4 to M30, and lengths of between 2.00mm and 500.00mm. Both partially threaded and fully threaded varieties are available.
Imperial Cap Head Screws
Imperial Socket Cap Head Screws are manufactured in sizes between #0 and 1 inch. Lengths of between 3/32 inch and 12 inch are available as standard, and are manufactured in both fully and partially threaded varieties.
Minimum Thread Length
In accordance with DIN standards, Accu's Socket Cap Screws are manufactured to a minimum specified thread length - this measurement can be found within each individual product page. If this dimension is critical to your application, please contact us before placing your order. Fully Threaded versions are also available.