20 X 3/8" "Bullet" Screw 21mm Screw Stainless Steel for Tripod Clamp Hex Head SS Desmond

20 x Desmond Brand 3/8" 21mm long Screw. Specially designed with a small head to fit counter sunk clamps. Fits all Sunwayfoto & Desmond Clamps. Stainless steel for superior strength. 3/8"-16 metal male thread w 4mm hex socket . Shaft is 17.5mm in length, including the thread. Threaded portion is 9mm. Total length including base is 21mm.