Steel Poly Nut Zinc = NRIV020----X---Z1
Aluminum Poly Nut = NPOLALM----X---
| Thread Size | Steel Marson # | Aluminum Marson # | D | B | A | Grip Range | Hole Size | Drill Size | ||
| Body Dia. | Head Dia. | Body Length | ||||||||
| Min | Max | Min | Max | |||||||
| 6-32 | 57415 | 57510 | .249 | .287 | .410 | .020 | .080 | .250 | .254 | 1/4" |
| 8-32 | 57425 | 57520 | .249 | .287 | .410 | .020 | .080 | .250 | .254 | 1/4" |
| 10-24 | 57435 | 57530 | .280 | .320 | .465 | .020 | .130 | .281 | .285 | 9/32" |
| 10-32 | 57445 | 57540 | .280 | .320 | .465 | .020 | .130 | .281 | .285 | 9/32" |
| 1/4-20 | 57455 | 57550 | .374 | .415 | .610 | .030 | .165 | .375 | .379 | 3/8" |
| 5/16-18 | 57475 | 57575 | .499 | .540 | .720 | .030 | .165 | .500 | .504 | 1/2" |
| 3/8-16 | 57485 | 57585 | .499 | .540 | .720 | .030 | .165 | .500 | .504 | 1/2" |
| 4mm | 57407 | . | .249 | .287 | .410 | .020 | .080 | .250 | .254 | 1/4" |
| 5mm | 57409 | . | .280 | .320 | .465 | .020 | .130 | .281 | .285 | 9/32" |
| 6mm | 57411 | . | .374 | .415 | .610 | .030 | .165 | .375 | .379 | 3/8" |
| 8mm | 57413 | . | .499 | .540 | .720 | .030 | .165 | .500 | .504 | 1/2" |
| 10mm | 57414 | . | .499 | .540 | .720 | .030 | .165 | .500 | .504 | 1/2" |
Note: Smaller Head Flange than Rivet Nut for nearly flush application
Disclaimer: The dimensions listed are for reference only. Sizes not listed may be available off the shelf or can be manufactured to customer requirements.