Thomas Air Pac Piston Compressor Piston Retainer Head Screw #625180, #625776.

Set of 2 Piston Head Screws as pictured # 3. These are for a philips head screw as shown in picture 2 and NOT the original T-27 torx one.

This Replacement head screw replaces the torx T-27 head screw used if it becomes stripped out.

NOTE - the original screw has loctite on it. Can be removed by heating it up with a torch and slowly backing out.

Fits all Thomas models starting with:

2770, 2750, 2770, 2755, 668, 688, 669, 680, 2680, 2650, 2660, 2685, 2688, 2668, 2619, 2639, 2669.

As well as Vertex, Brookwood, Sweetwater Thomas Models

**DOES NOT fit Gast Models** If your compressor does not look like the one pictured it will not fit.

1/4 HP AQ101C Sweetwater single piston/single cylinder compressor 1/2 HP AQ201C, AQ202C, AQ401C, AQ402C Sweetwater dual piston/dual cylinder compressor
 COM404-CK - 1/3 hp Single Cylinder 115V
 COM402-CK - 1/3 hp Single Cylinder 230V 
 COM106-CK - 1/2 hp Dual Cylinder 115V
 COM405-CK - 1/2 hp Dual Cylinder 230V
 COM103-CK - 3/4 hp Dual Cylinder 115V
 COM403-CK - 3/4 hp Dual Cylinder 230V
COM401-MK for a COM401 Compressor
COM402-MK for a COM402 Compressor
COM404-MK for a COM404 Compressor
COM106-MK for a COM106 Compressor
COM405-MK for a COM405 Compressor
COM103-MK for a COM103 Compressor
COM403-MK for a COM403 Compressor
COM500-MK for a PondLyfe Compressor
COM512-MK for a BriteStar Compressor