The TIMco Blackjax is a twin-threaded woodscrew with a black Japan finish designed to be used with black ironmongery.The Blackjax Woodscrew is for general use into softwood and various types of hardwood. Pozi recess for reduced cam out and round head for reliable clamping. The twin thread allows for a faster insertion and greater pull out resistance. 

25° sharp point and single leading thread for a fast start and improved thread acceptance.
60° Twin-threads with parallel shank for faster insertion and greater pull out resistance.   
Pozi recess for reduced cam out and round head for reliable clamping.
Designed to be used with black ironmongery.
Suitable for TIMco and all other leading plastic expansion plugs.

Black Passivated
Partially threaded from 1 1/4"
Softwood and various types of hardwood

Size - 8 x 1 1/2"