M12 x 1.25P Super Fine Thread, Hex Set Screw (fully threaded), High Tensile/ 8.8, Self Colour, DIN 933.

M12 x 1.25 Pitch (super-fine), Hexagon, Set Screw, High Tensile (8.8), Self Colour, DIN 961.

Fixaball sells all lengths of M12 x 1.25P hexagon head, set screw at the best internet prices, with free delivery.

Orders placed before 2pm are usually dispatched same day (Mon-Fri).

Standard, Free Delivery is Royal Mail, 2nd Class (2-5 days, most likely 2 days). For a faster delivery time, select 1st class or courier at checkout. Packs weighing under 250grams are upgraded to 1st class as much as possible,

Please choose your size and pack quantity from the drop down menus.

Head Type: Hexagon Head.

Lengths available:  25mm, 30mm, 35mm, 40mm, 50mm.

Bolt vs Screw

A screw, screws into something, a bolt joins several things together from the outer sides of materials joined. A screw is fully threaded from underneath the head and a bolt is partially threaded (has a part-plain shank/ shoulder)

Spanner Sizes

They come in the following materials:

High Tensile (8.8, 10.9, 12.8), Zinc Plated, Brass, A2 Stainless (regular), A4 Stainless (marine)

Threads

Metric Coarse and Metric Fine (M1, M2, M3.... M10, etc.) dimensions are measured in Millimetres (mm) units and were developed to simplify the imperial systems. Europe moved to this system but the Americans choose Imperial as their default. A coarse thread has less helical coils per mm and a fine one has more. Coarse is used for heavier loads and fine is used for lighter loads prone to vibrations.

Image is for illustrative purposes only.