Fasteners to the letter of the standard, never to the nearest match.

The house register

Twelve lines that move every week

The register is not a brochure — it is the stock file, printed. What you see below is on the shelf this morning; if a line falls below fifty pieces it leaves the register until it lands.

Register continues sideways — scroll →

Standards & equivalences

Every line governed, every cross-reference on record

We hold to the DIN issue printed against each line, and we answer for the ISO equivalent when your drawings call for it. If a standard is withdrawn, the affected lines are re-issued with a new catalogue number rather than silently substituted.

DIN 912

Hexagon socket head cap screws. The general-purpose high-strength fastening; our widest line by count, M3 through M20, classes 8.8, 10.9 and 12.9.

DIN 934

Hexagon nuts, full thread, style 1. Paired to cap screws one class lower than the screw, as the drawings intend.

DIN 125 A

Plain washers, medium series. Hardened where the class demands it; A2 and A4 otherwise.

DIN 7991

Hexagon socket countersunk screws. Head sits flush at 90°; we will tell you when a 82° American csk is what you actually hold.

DIN 6912

Low-head hexagon socket cap screws. For clamping stacks where the full head will not clear; never load in tension beyond catalogue values.

DIN 913

Hexagon socket set screws, flat point, 45H. The register’s short-lead line; ground points to order.

Reference

Coarse series — pitch & tap drills

The ISO metric coarse profile, as quoted at our counter. Read the pitch from the thread callout before you phone; the tap drill follows from it, not from the shelf.