All measurements in millimeters (mm) Metric DIN 603 mushroom head square neck carriage bolts have a smooth domed head that prevents them from being tightened or loosened from above. The square shoulder below the head is designed to self-anchor into wood and resists turning when the nut is tightened on
All measurements in millimeters (mm) Metric DIN 7991 hexagon socket cap screws have a flat countersunk head with an internal hexagonal drive suited for a hex / Allen key or wrench. The internal drive is ideal for situations where externally wrenched screws are impractical such as in applications where limited
All measurements in millimeters (mm) Metric DIN 915 hexagon socket set screws with dog point are headless and fully threaded screws with an internal hexagonal drive at one end and an elongated blunt surface at the other. They are to be inserted through pre-drilled aligned holes which permit tightening against
All measurements in millimeters (mm) Metric DIN 914 hexagon socket set screws with cone point are headless and fully threaded screws with an internal hexagonal drive at one end and a conical shaped surface at the other. They are to be inserted through pre-drilled aligned holes which permit deep penetration
All measurements in millimeters (mm) Metric DIN 913 hexagon socket set screws with flat point are headless and fully threaded screws with an internal hexagonal drive at one end and a flat surface at the other. They are to be inserted through pre-drilled aligned holes and used to reset or
All measurements in millimeters (mm) Metric DIN 6334 Hexagon Coupling Nuts also known as extension nuts are elongated fully threaded hex nuts that often used to join two externally threaded fasteners usually threaded rods. DIN 6334 metric hex nuts have a height of 3 x the major diameter of the
All measurements in millimeters (mm) Metric DIN 315 wing nuts / butterfly nuts of the German Type have two rounded wing like projections. This unique design makes it possible to use your thumb and forefinger to turn and tighten the nut rather than a having to use a wrench or
All measurements in millimeters (mm) Metric DIN 315 wing nuts / butterfly nuts of the German Type have two rounded wing like projections. This unique design makes it possible to use your thumb and forefinger to turn and tighten the nut rather than a having to use a wrench or
All measurements in millimeters (mm) Legend: s - size of the hexagon t - length of the thread d - the nominal diameter of the thread h - height of the nut m - hight of the nut part dk - head diameter da - Turning diameter shrinkage dw - contact surface diameter mw - minimum wrenching height
All measurements in millimeters (mm) Metric DIN 985 nylon insert lock nuts low profile are prevailing torque type lock nuts which have a permanent undersized non metallic insert (nylon/polyamide) that produces friction between threads of mated components thereby increasing the resistance to loosening forces. Nylon insert lock nuts may be