12.9 Black Oxide Coated Steel Flange Bolts

Unbrako Durlok® self locking, anti vibration hex head flange bolts. These are serrated flanged hex head bolts, which can be paired with the Unbrako Durlok® self locking serrated flanged nut. They both have a high tensile strength of 12.9 and a black oxide/self coloured finish. These heavy duty fasteners are suitable for situations where vibration and jarring occurs and where the joint is subject to high loads. They can be reused, as they are unlikely to be damaged by the adjoining surfaces. Durlok® Bolts are manufactured from alloy steel and are through hardened to give the same hardness from the tooth surface to the core. Durlok® Fasteners can be used at high temperatures up to 300°C.

High Tensile Socket Head Flange Button Screws in a Black Oxide Finish. A popular and attractive socket screw with an integrated flange offering a wider head for bolting softer materials, and used where a lower profile finish is required. UNBRAKO® branded and manufactured to be stronger than the other size for size high tensile versions. Includes a precision hex socket for maximum key engagement. Recommended for moderate applications such as machine guards, hinges and covers. Please note that due to the nature of the surface finish on Unbrako products, some surface corrosion may be evident. This does not affect the performance of the product. Property class of 12.9, similar to ISO 7380 part 2.