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Low Head Socket Cap
Match your Allen / hex key AF (across-flats) to the screw size it fits. Our reference chart covers every metric and imperial size we stock.
Low head socket cap screws are a reduced-height variant of the standard cap head socket screw, designed for applications where a full-height cap head won't fit — shallow countersinks, recessed panels, cramped machinery spaces and assemblies with tight clearances.
The hex socket drive is smaller than on a full cap head of the same thread size, which means maximum installation torque is reduced compared to a standard cap head. They are fully threaded with uniform diameter throughout and require a pre-tapped hole or matching nut.
MATERIALS
Zinc Plated — Bright silver finish, internal use. Standard for general engineering and electronics applications where head height is the primary constraint.
A2-70 G304 Stainless — For applications requiring corrosion resistance where a standard cap head is too tall. Largely non-magnetic — A small degree of work-hardening magnetism is normal.
WHY AUSTRALIA TRUSTS BOLT & NUT
With 15+ years selling fasteners online from Brisbane, we hold over 25,000 stock lines and 200 million pieces — 98.75% of online orders placed before 1pm leave same day. Save more as you buy more — we offer up to 13 price breaks plus 3 spend-tier discounts. Read our customer reviews or get in touch if you need help picking the right socket screw.
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A reduced-height cylindrical socket cap head with an internal hex (Allen) socket - for tight clearances where a standard cap head sits too tall. Stainless and high-tensile carbon.
TECHNICAL RESOURCES
Need help identifying your socket screw? Check the Allen key sizes for socket products, or our thread size identification guide.
For full sizing data and standards, see our Technical PDFs library.
