NA / NAL

All Products / Self-clinching Hardware / Inch Self-clinching Nuts / NA / NAL


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Product Description: N/A Category: Tag:

Features

  • Internal floating nut feature allows up to .030” (0.76mm) lateral adjustment to compensate for misalignment with mating fastener.
  • Permanent installation in aluminum,carbon steel and stainless steel sheets.
  • Self-locking version provides uniformity of locking torque equivalent to NASM25027 specifications. See the Pencom website technical reference Locking Fastener Conformance to NASM25027 for complete information.
  • Choice of RoHS–compliant materials and finishes.


When second sourcing PENCOM’s products, PENCOM recommends that the part is tested in the application to ensure that it will meet all performance requirements.

Dimensions

Thread1 Thread
Code
Sheet A
Shank Length Max.
C
Max.
D
Max.
E
±.015
T1 Max. T2 Max.
Minimum Thickness Hole Size
+.003
-.000
Minimum
Distance Hole
Center to Edge
2-562 256 .038 .290 .30 .038 .289 .290 .360 .130 .190
.054 .054
4-40 440 .038 .290 .30 .038 .289 .290 .360 .130 .190
.054 .054
6-32 632 .038 .328 .32 .038 .327 .335 .390 .130 .200
.054 .054
8-32 832 .038 .368 .34 .038 .367 .365 .440 .130 .210
.054 .054
10-24 1024 .038 .406 .36 .038 .405 .405 .470 .170 .270
.054 .054
10-32 1032 .038 .406 .36 .038 .405 .405 .470 .170 .270
.054 .054
1/4-20 2520 .054 .515 .42 .054 .514 .510 .600 .210 .310
1/4-28 2528 .054 .515 .42 .054 .514 .510 .600 .210 .310
  1. NA and NAL-series internal threads comply with ANSI B1.1 2B and 3B thread specifications, respectively.
  2. NAL not available with 2-56 threads.

Material & Finish

Material
Code
Finish
Code
Retainer Nut For use in
Sheet Hardness
Material
Description
Finish
Description
Material
Description
Finish
Description
HRB 70
Max.
HRB 88
Max.
NA Non-Locking
ST Z Heat-treated
Carbon Steel
Zinc (SC1) with Type III Clear Chromate per ASTM B 633 Carbon Steel Zinc (SC1) with Type III Clear Chromate per ASTM B 633
SS P 300-Series
Stainless Steel
Passivate and/or test per ASTM A 967 300-Series
Stainless Steel
Passivate and/or test per ASTM A 967
S41 P 400-Series
Stainless Steel
Passivate and/or test per ASTM A 967 300-Series
Stainless Steel
Passivate and/or test per ASTM A 967
NAL Locking
ST DF Heat-treated
Carbon Steel
Zinc (SC1) with Type III Clear Chromate per ASTM B 633 300-Series
Stainless Steel
Black Dry-film Lubricant
SS DF 300-Series
Stainless Steel
Passivate and/or test per ASTM A 967 300-Series
Stainless Steel
Black Dry-film Lubricant
S41 DF 400-Series
Stainless Steel
Passivate and/or test per ASTM A 967 300-Series
Stainless Steel
Black Dry-film Lubricant

1. Not available in 2-56, 4-40, 6-32, 8-32, 10-24 and 10-32 thread sizes with .054” shank length; M2, M2.5, M3, M4 and M5 thread sizes with 1.38mm shank length; and 1/4-20, 1/4-28 and M6 thread sizes.

Installation

  1. Punch or drill hole in sheet. Do not deburr edges.
  2. Insert fastener in recessed anvil and locate sheet hole over the retainer shank.
  3. Squeeze the fastener and sheet between parallel punch and anvil surfaces. Use only enough pressure to seat the retainer shoulder flush with the sheet. Punch and anvil should be made from hardened steel.
Anvil Dimensions
Thread
Code
M
+.005
+.002
N
+.005
+.002
256, 440 .290 .375
632 .335 .405
832 .365 .455
1024, 1032 .405 .485
2520, 2528 .510 .615

Performance

Series types NASS, NAST, NALSS and NALST

Thread
Code
Retainer
Shank
Length
Sheet material
2024-T3 Aluminum 5052-H34 Aluminum Cold-Rolled Steel
Installation
(lbs)
Retainer
Push-out
(lbs)
Retainer
Torque-out
(in-lbs)
Installation
(lbs)
Retainer
Push-out
(lbs)
Retainer
Torque-out
(in-lbs)
Installation
(lbs)
Retainer
Push-out
(lbs)
Retainer
Torque-out
(in-lbs)
256
440
.038 3000 220 65 1500 215 65 3000 300 85
.054 225 150 2000 225 80 150
632 .038 3000 235 110 2000 240 140 3000 300 150
.054 275 150 250 150 175
832 .038 3000 240 110 2000 250 140 3000 300 150
.054 300 150 265 150 400 200
1024
1032
.038 3500 300 150 2000 300 150 3500 400 150
.054 200 350 175 450 200
2520
2528
.054 5000 300 325 3000 400 325 5000 500 325
Thread
Code
Sheet Material
300-Series Stainless Steel
Installation
(lbs)
Retainer
Push-out
(lbs)
Retainer
Torque-out
(in-lbs)
256, 440 9000 200 85
632 10000 200 85
832 12000 200 85
1024, 1032 13000 250 125

1. Performance data represents reference averages based on commonly reported industry values when all installation specifications and procedures are followed. Variations such as sheet material type, hardness and thickness; hole diameter; method of hole manufacture; size and location of hole burr if any; and amount of installation load will affect the data. PENCOM highly recommends testing in each application to determine actual loads.