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| [ PROJECTION WELD SCREWS - M50 & M51 ] |
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Easy-Spot "51" Metric Weld Screws have three precision projections located 120° apart, under the head. Recommended for through hole applications. |
M50 |
| Thread Size |
6-32 |
8-32 |
10-24 |
10-32 |
-20 |
-28 |
5/16-18 |
5/16-24 |
3/8-16 |
3/8-24 |
¸-13 |
| "HD" Head Diameter |
0.323 |
0.385 |
0.448 |
0.448 |
0.575 |
0.575 |
0.755 |
0.755 |
0.88 |
0.88 |
1.005 |
0.303 |
0.365 |
0.428 |
0.428 |
0.55 |
0.55 |
0.725 |
0.725 |
0.85 |
0.85 |
0.975 |
| "HT" Thickness |
0.052 |
0.068 |
0.068 |
0.068 |
0.083 |
0.083 |
0.099 |
0.099 |
0.114 |
0.114 |
0.146 |
0.042 |
0.058 |
0.058 |
0.058 |
0.073 |
0.073 |
0.089 |
0.089 |
0.104 |
0.104 |
0.136 |
| "A" Projection Diameter |
0.055 |
0.075 |
0.085 |
0.085 |
0.105 |
0.105 |
0.125 |
0.125 |
0.135 |
0.135 |
0.156 |
0.045 |
0.065 |
0.075 |
0.075 |
0.095 |
.095 |
0.115 |
0.115 |
.125 |
0.125 |
0.145 |
| "B" Projection Height |
0.022 |
0.027 |
0.032 |
0.032 |
0.042 |
0.042 |
0.047 |
0.047 |
0.052 |
0.052 |
0.062 |
0.018 |
0.023 |
0.028 |
0.028 |
0.038 |
0.038 |
0.043 |
0.043 |
0.048 |
0.048 |
0.058 |
| Length Tolerance |
Length "L"(Under Head) |
Part Number |
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1/4 |
50-1104 |
50-1404 |
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| Under 1" |
5/16 |
50-1105 |
50-1405 |
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| +.000 |
3/8 |
50-1106 |
50-1406 |
50-1506 |
50-1606 |
50-2106 |
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| -.031 |
1/2 |
50-1108 |
50-1408 |
50-1508 |
50-1608 |
50-2108 |
50-2208 |
50-2708 |
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50-3308 |
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9/16 |
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50-1609 |
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| 1" - 2" |
5/8 |
50-1110 |
50-1410 |
50-1510 |
50-1610 |
50-2110 |
50-2210 |
50-2710 |
50-2810 |
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| +.000 |
3/4 |
50-1112 |
50-1412 |
50-1512 |
50-1612 |
50-2112 |
50-2212 |
50-2712 |
50-2812 |
50-3312 |
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| - 062 |
7/8 |
50-1114 |
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50-1614 |
50-2114 |
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50-2714 |
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50-3314 |
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1 |
50-1116 |
50-1416 |
50-1516 |
50-1616 |
50-2116 |
50-2216 |
50-2716 |
50-2816 |
50-3316 |
50-3416 |
50-4416 |
Over 2"
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1-1/4 |
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50-1420 |
50-1520 |
50-1620 |
50-2120 |
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50-2720 |
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50-3320 |
50-3420 |
50-4420 |
| +.000 |
1-1/2 |
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50-1424 |
50-1524 |
50-1624 |
50-2124 |
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50-2724 |
50-2824 |
50-3324 |
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50-4424 |
| -.093 |
1-3/4
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50-2128 |
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50-3328 |
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2 |
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50-1532 |
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50-2132 |
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50-2732 |
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50-3332 |
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50-4432 |
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3 |
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50-1548 |
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50-2148 |
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| M51 |
| Size & Designation |
M3.5-6g |
M4-6g |
M5-6g |
M6-6g |
M8-6g |
M10-6g |
M12.6g |
| Thread Pitch |
0.6 |
0.7 |
0.8 |
1 |
1.25 |
1.5 |
1.75 |
| "HD" Head Diameter |
8.2 |
9.5 |
11.8 |
19.2 |
19.2 |
23.4 |
2.54 |
| 7.7 |
9 |
11.3 |
18.4 |
18.4 |
22.6 |
24.6 |
| "HT" Thickness |
1.33 |
1.43 |
1.73 |
2.63 |
2.63 |
3.23 |
3.73 |
| 1.07 |
1.17 |
1.47 |
2.37 |
2.37 |
2.97 |
3.47 |
| "A" Projection Diameter |
1.53 |
1.91 |
2.39 |
3.23 |
3.23 |
3.69 |
3.94 |
| 1.27 |
1.65 |
2.13 |
2.97 |
2.97 |
3.43 |
3.68 |
| "B" Projection Height |
0.58 |
0.69 |
0.9 |
1.25 |
1.25 |
1.45 |
1.57 |
| 0.48 |
0.59 |
0.8 |
1.15 |
1.15 |
1.35 |
1.47 |
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| Length Tolerance |
Length Under Head "L" |
PART NUMBER |
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6mm |
51-03506 |
51-04006 |
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| Up to 25 mm |
8mm |
51-03508 |
51-04008 |
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| -.8 |
10mm |
51-03510 |
51-04010 |
51-05010 |
51-06010 |
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12mm |
51-03512 |
51-04012 |
51-05012 |
51-06012 |
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| Over 25mm to |
14mm |
51-03514 |
51-04014 |
51-05014 |
51-06014 |
51-08014 |
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| 50 mm |
16mm |
51-03516 |
51-04016 |
51-05016 |
51-06016 |
51-08016 |
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| -1.6 |
20mm |
51-03520 |
51-04020 |
51-05020 |
51-06020 |
51-08020 |
51-10020 |
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25mm |
51-03525 |
51-04025 |
51-05025 |
51-06025 |
51-08025 |
51-10025 |
51-12025 |
| Over 55mm |
30mm |
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51-04030 |
51-05030 |
51-06030 |
51-08030 |
51-10030 |
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| -2.3 |
35mm |
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51-04035 |
51-05035 |
51-06035 |
51-08035 |
51-10035 |
51-12035 |
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40mm |
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51-06040 |
51-08040 |
51-10040 |
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45mm |
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51-06045 |
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51-10045 |
51-12045 |
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50mm |
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51-06050 |
51-08050 |
51-10050 |
51-12050 |
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75mm |
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51-06075 |
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