3-56 x 1/2" Low Profile Pan Head, Stainless, Philips Drive,

Vintage Custom Maid Bolts Ballantine Test Equipment Manufacture in 80's

Sitting on shelve for over 30 years made in USA You cannot find quality like this anymore

Non Magnetic Assume Stainless magnet will not pick up this screws

Pan Head Custom Low profile Design Machine Screw, 

Head Height all measurements are approximate do to equipment tolerances 

at edge 0.044 center 0.049  Screw OL 0.545 Thread 0.498

Head Diameter 0.200

Listing is for 25pc Philips Drive, #3-56 Thread Size, 1/2" Length, Fully Threaded

25 Items count by weight  12.8g

Brand new. Will come in a Ziploc bag Bulk Packaging