Double end studs have a short thread on one end for tapping into a housing and a longer thread on the other for the nut. We manufacture them in our Umm Al Quwain plant in stainless and carbon steel, M5 to M30, to DIN 938, 939 and 835 or to your length and thread split.
A double end stud (tap-end stud) is threaded at both ends with a plain shank between. One end is screwed permanently into a tapped hole in a casting, flange or machine body; the other takes the nut. DIN 938 has a tapping length of 1×d, DIN 939 1.25×d and DIN 835 2×d, matched to the strength of the housing material — steel, cast iron or aluminium respectively.
Applications
- Engine, gearbox and pump housing studs
- Valve and flange studs into cast bodies
- Machine tool and press fixtures
- Cylinder head and manifold studs
- Aluminium casting assemblies (DIN 835)
- Marine and offshore equipment
Standards, grades & finishes
Manufactured to DIN 938 / 939 / 835 or ISO dimensions in property class 5.8, 8.8 and 10.9, stainless A2-70 and A4-80. Threads metric coarse or fine to ISO 965 6g. Finish self colour, zinc plated or plain stainless. Supplied with DIN 934 nuts and washers on request.
Anchor bolts, studs and plate washers are manufactured in our own ISO 9001:2015 plant in Emirates Modern Industrial Area, Umm Al Quwain, with calibrated in-house dimensional and thread inspection. Tensile, hardness and chemical testing is carried out by independent UAE-accredited laboratories, and EN 10204 3.1 certificates are issued with every batch. We supply across the GCC, MENA and Africa.