[ PROJECTION NUTS - M08 & M09
   

"M20" Inch and "M21" Projection Weld Nuts have two ribbed projections for equal welding strength.  The depth of pilot prevents shunting, eliminating the necessity of re-tapping damaged threads, and provides additional thread depth.

  
M20
NUT
PILOT
Part Number
Size
Width "W"
Thickness "T"
Length "L"
Diameter "PD"
Height "PH"
Projection Width "A"
Projection Height "B"
Projection Length "C"
Sheet Hole
M20-1110 6-32 0.39 0.098 0.64 0.198 0.042 0.099 0.014 0.109 0.203
0.37 0.088 0.61 0.178 0.026 0.089 0.01 0.079
M20-1410 8-32 0.39 0.098 0.64 0.213 0.042 0.099 0.014 0.109 0.219
0.37 0.088 0.61 0.193 0.026 0.089 0.01 0.079
M20-1510 10-24 0.39 0.098 0.64 0.244 0.042 0.099 0.014 0.109 0.25
0.37 0.88 0.61 0.224 0.026 0.089 0.01 0.079
M20-1710 10-32 0.39 0.098 0.64 0.244 0.042 0.099 0.014 0.109 0.25
0.37 0.088 0.61 0.224 0.026 0.089 0.01 0.079
M20-2113 -.20 0.52 0.13 0.827 0.307 0.062 0.13 0.025 0.14 0.312
0.495 0.12 0.797 0.287 0.046 0.12 0.021 0.11
M20-2213 -28 0.52 0.13 0.827 0.307 0.062 0.13 0.025 0.14 0.312
0.495 0.12 0.797 0.287 0.046 0.12 0.021 0.11
M20-2716 5/16-18 0.655 0.145 0.999 0.369 0.092 0.13 0.029 0.156 0.375
0.62 0.135 0.969 0.349 0.076 0.12 0.027 0.126
M20-2816 5/16-24 0.655 0.145 0.999 0.369 0.092 0.13 0.029 0.156 0.375
0.62 0.135 0.969 0.349 0.076 0.12 0.027 0.126
M20-3316 3/8-16 0.655 0.145 0.999 0.448 0.092 0.13 0.029 0.156 0.453
0.62 0.135 0.969 0.428 0.076 0.12 0.025 0.126
M20-3416 3/8-24 0.655 0.145 0.999 0.448 0.102 0.13 0.029 0.156 0.453
0.62 0.135 0.969 0.428 0.086 0.12 0.025 0.126
M20-4418 -13 0.797 0.192 1.14 0.599 0.102 0.13 0.029 0.171 0.609
0.734 0.178 1.11 0.569 0.086 0.12 0.026 0.141

M21
NUT PILOT        
Part Number Size Width "W" Thickness "T" Length "L" Diameter "PD" Height "PH" Projection Width "A" Projection Height "B" Projection Length "C" Sheet Hole
M21-03516 M3.5x0.6 9.9 2.5 16.4 5 1.1 2.5 0.36 2.8 5.2
9.4 2.3 15.6 4.5 0.7 2.25 0.25 2
M21-04016 M4x0.7 9.9 2.5 16.4 5.4 1.1 2.5 0.36 2.8 5.6
9.4 2.3 15.6 4.9 0.7 2.25 0.25 2
M21-05016 M5x0.8 9.9 2.5 16.4 6.2 1.1 2.5 0.36 2.8 6.4
9.4 2.3 15.6 5.7 0.7 2.25 0.25 2
M21-06020 M6x1.0 13.4 3.3 21 7.8 1.5 3.3 0.64 3.6 8
12.7 3.1 20.2 7.3 1.1 3.05 0.53 2.8
M21-08025 M8x1.25 16.4 3.7 25.4 9.4 2.3 3.3 0.74 4 9.6
15.7 3.5 24.6 8.9 1.9 3.05 0.63 3.2
M21-10025 M10x1.5 16.4 3.7 25.4 12 2.7 3.3 0.74 4 12.2
15.7 3.5 24.6 11.5 2.3 3.05 0.63 3.2
M21-12028 M12x1.75 20.3 4.9 28.4 14.2 2.7 3.3 0.77 4.4 14.4
18.6 4.7 27.6 13.7 2.3 3.05 0.66 3.6