[ PROJECTION WELD SCREWS - M50 & M51 ]
   

Easy-Spot "54" & "55" Projection Weld Screws
have three precision projections located 120°
apart, on top of the head, eliminating the need
for holes in the mating surface. Recom-
mended where appearance is a requirement
or where a hole in the mating surface is not
desirable.

M54
Thread Size 6-32 8-32 10-24 10-32 1/4-20 5/16-18 3/8-16
"HD"Head Diameter
0.26
0.323
0.385
0.385
0.51
0.63
0.755
0.24
0.303
0.365
0.365
0.485
0.605
0.725
"HT'Thickness 
0.046
0.052
0.068
0.068
0.083
0.099
0.114
0.036
0.042
0.058
0.058
0.073
0.089
0.104
"A" ProjectionDiameter
0.055
0.075
0.085
0.085
0.105
0.125
0.135
0.045
0.065
0.075
0.075
0.095
0.115
0.125
"B" Projection Height
0.022
0.027
0.032
0.032
0.042
0.047
0.052
0.012
0.023
0.028
0.028
0.038
0.043
0.048
Length Tolerance
Length "L"
Part Number
Under 1"
1/4
54-1104
54-1404
+.000
5/16
54-1105
-.031
3/8
54-1106
54-1406
54-1506
54-1606
54-2106
 
1/2
54-1108
54-1408
54-1508
54-1608
54-2108
1" to 2"
5/8
54-1110
54-1410
54-1510
54-1610
54-2110
54-2710
+.000
3/4
54-1112
54-1412
54-1512
54-1612
54-2112
54-2712
54-3312
-.062
7/8
54-1114
54-1414
54-2114
 
1
54-1116
54-1416
54-1516
54-1616
54-2116
54-2716
54-3316
Over 2"
1-1/4
54-1420
54-2120
54-2720
+.000
1-1/2
54-1524
54-1624
54-2124
54-2724
54-3324
-.093
1-3/4
54-1628
54-2728
54-3328
 
2-1/4
54-3336

M55

Size M3x.6 M4x.7 M5x.8 M6x1.0 M8x1.25 M10x1.5
"HD"Head Diameter  7.25 8.25 10.25 12.3 16.3 20.4
6.75 7.75 9.75 11.7 15.7 19.6
"HT"Thickness 1.23 1.33 1.73 2.03 2.63 3.23
0.97 1.07 1.47 1.77 2.37 2.97
"A" Projection 1.53 1.91 2.39 2.67 3.23 3.69
1.27 1.65 2.13 2.41 2.97 3.43
"B" Projection Height 0.58 0.69 0.9 1.07 1.25 1.45
0.48 0.59 0.8 0.97 1.15 1.35
Length Tolerance
Length"A"
Part Numbers
Up tp 25mm 6mm 55-03506 55-04006        
+0.0 8mm 55-03508 55-04008        
-0.8 10mm 55-03510 55-04010 55-05010 55-06010    
  12mm 55-03512 55-04012 55-05012 55-06012    
Over 25mm 14mm 55-03514 55-04014 55-05014 55-06014    
To 50 mm 16mm 55-03516 55-04016 55-05016 55-06016 55-08016  
+0.0 20mm 55-03520 55-04020 55-05020 55-06020 55-08020 55-10020
 - 1.6 25mm 55-03525 55-04025 55-05025 55-06025 55-08025 55-10025
  30mm   55-04030 55-05030 55-06030 55-08030  
Over 55mm 35mm     55-05035 55-06035 55-08035 55-10035
+0.0 40mm     55-05040 52-06040 55-08040  
-2.3 45mm     55-05045   55-08045 55-10045
  55mm           55-10055