Ozzistraightshooter  6-48 SCREW SET for rifle scope mountings.
 
High quality hardened steel black oxide screws to retain your scope 
mounts on the rifles receiver.
 
Set includes 4 sizes of screw, 8 pieces of each size. 32 screws in the set.
 
Screws included are:
6-48 x 1/4 in, TORX semi countersunk head. T10, overall length 6.30mm, 
thread length 3.5mm (approx.), head diameter 5.4mm.
6-48 x 8.89mm, TORX semi countersunk head. T10, overall length 8.89mm,
thread length 6.3mm (approx.), head diameter 5.4mm.
6-48 x 3/8 in, TORX cap head. T15, overall length 11.9mm, 
thread length 8.9mm (approx.), head diameter 4.9mm.
6-48 x 1/4 in, SLOTTED head, overall length 7.33mm, 
thread length 4.25mm (approx.), head diameter 6.0mm.
 
You might also be interested in the 6-48 drill and tap set