Custom Double Thread Type 17 Wood Screws

 

These custom double thread screws were a custom variation of hanger bolt for our construction customer - they were manufactured using 304 stainless steel material and combines an M6-1.0 machine screw thread that includes a 3MM hex socket drive with oversize type 17 point wood screw thread.  A needle sharp point was a prominent and critical feature accomplished with fine tuned point angle.  The parts were provided with factory passivated finish.

Custom Grade 5 Flat Head Wood Screws

 

These custom wood screws were manufactured using Grade 5 10B21 steel material with electro zinc + clear finish.  They were heat treated to achieve HRC 25-33 hardness prior to the plating process.  The partial thread was rolled and the overall length of the screw inclusive of the slotted flat head was set to 4 inches.