Square Head Nylon Grommet Nut:

Drawing 1: squrgndw.jpg

Open Poly Grommet Nuts provide a low cost, positive connection of thin gauge materials while they eliminate cross threading. The specially designed locks snap into a pre-punched square hole. As the self-threading sheet metal screw is tightened, the Poly Grommet expands and securely locks the screw and assembled parts in place. The Grommet will provide a corrosion and vibration resistant connection and can be used to insulate areas of an assembly from electrical and thermal transfer. Some of the more common sizes that we have initially tooled are shown below.

Because of our unique tooling approach, we can vary this design over a wide range. Request the size you need. Poly Grommets are molded in Nylon 6/6 and can be dyed or molded in various colors. Different plastic materials can be substituted. Naturally, changes in our standard product will involve additional costs. Let us know what you need.
Item Number Hole Size Thickness Range Screw Head Size "B" Height "A" Length "C" (+/-.015)
60SGN00001 .275 / .290 .031 / .125 8 - 10 .375 0.031 0.32
60SGN00002 .275 / .290 .031 / .125 8 - 10 .375 0.062 0.32
60SGN00003 .275 / .290 .031 / .125 8 - 10 .375 0.125 0.32
60SGN00004 .275 / .290 .031 / .125 8 - 10 .375 0.25 0.32
60SGN00005 .375 .031 / .125 1/4 .625 1.0625 0.281
60SGN00006 .250 / .260 .031 / .115 6 .435 0.094 0.22
60SGN00007 .270 / .270 .062 / .275 6 .375 / .500 0.031 0.435
60SGN00912 .225 / .255 .031 / .125 8 .375 0.187 0.3
60SGN00913 .250 .031/.060 8 - 10 0.406 0.03 0.281
60SGN00915 .245 / .255 .031 / .125 6 - 8 .375 0.031 0.281
60SGN01000 .250 / .255 .110 / .125 6 .375 0.031 0.265
60SGN01012 .173 / .178 .031 / .078 4 .218 0.25 0.218
60SGN01014 .250 / .270 .062 / .155 6 .375 0.032 0.312
60SGN01016 .285 .078 / .175 8 .380 0.045 0.34
60SGN01020 .275 / .280 .040 / .045 8 - 10 .370 0.032 0.33
60SGN01122 .350 / .355 .218 / .230 8 - 10 .475 0.062 0.421
60SGN01125 .370 / .390 .064 / .187 10 .609 0.085 0.29
60SGN01126 .305 / .315 .031 / .175 8 .470 0.06 0.3
60SGN01130 .370 / .375 .031 / .100 12 .620 0.08 0.275
60SGN01135 .173 / .178 .031 / .078 4 .218 0.05 0.218
60SGN01145 .270 / .310 .031 / .170 8 .405 0.062 0.312
60SGN01150 .310 / .310 .031 / .170 10 .465 0.062 0.295
60SGN01154 .320 / .320 .031 / .155 10 .650 0.072 0.305
60SGN01155 .245 / .250 .047 / .095 2 .375 0.032 0.24
60SGN01160 .335 / .340 .062 / .125 8 .512 0.075 0.315

 

Item Number Hole Size Thickness Range Screw Head Size "B" Height "A" Length "C" (+/-.015)
60SGN01165 .270 / .270 .062 / .125 6 .390 0.05 0.275
60SGN01170 .275 / .285 .031 / .125 4 .375 0.05 0.218
60SGN01171 .200 / .270 .032 / .156 6 .312 / .437 0.035 0.312
60SGN01175 .275 / .280 .062 / .120 6 .390 0.055 0.281
60SGN01176 .260 / .270 .093 / .187 6 .410 0.04 0.31
60SGN01178 275 .047 / .180 8 .375 0.032 0.327
60SGN01179 .365 .062 / .120 1/4 5/8 0.08 0.281
60SGN01180 .370 / .375 .062 / .120 1/4 .625 0.08 0.281
60SGN01181 .410 / .410 .031 / .062 1/4 .630 0.14 0.28
60SGN01185 .320 / .335 .032 / .234 10 .470 0.055 0.42
60SGN01190 .335 / .345 .062 / .171 10 .468 0.095 0.4
60SGN01195 .350 / .365 .032 / .095 8 .500 0.094 0.295
60SGN01200 .250 / .260 .062 / .125 6 .375 0.14 0.265