Sherex Fastening Solutions, LLC
Sherex Fastening Solutions, LLC.
400 Riverwalk Pkwy, Suite 600
Tonawanda, NY 14150
Toll Free: 866.474.3739
Tel: 716.875.0315
Fax: 716.875.0358
Email: info@sherex.com
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Part numbers listed below reflect steel, open-end, non-keyed, with cadmium yellow plating. Contact Sherex for additional configurations, platings, and materials.
NAS Rivet Nuts_Group
Unit of Measure
1 2 

Item #

NAS Part Number

Thread Size

Grip Range
(Min. - Max.)

Identifying Mark

Install Hole Size
Min. - Max.

SXS25-140CY N/A NAS1329S4E-140 N/A 1/4-20 UNC-3B N/A .080 - .140 N/A 1 RAD N/A .332 - .338
SXS25-200CY N/A NAS1329S4E-200 N/A 1/4-20 UNC-3B N/A .140 - .200 N/A 2 RAD N/A .332 - .338
SXS25-260CY N/A NAS1329S4E-260 N/A 1/4-20 UNC-3B N/A .200 - .260 N/A 3 RAD N/A .332 - .338
SXS25-320CY N/A NAS1329S4E-320 N/A 1/4-20 UNC-3B N/A .260 - .320 N/A 4 RAD N/A .332 - .338
SXS25-380CY N/A NAS1329S4E-380 N/A 1/4-20 UNC-3B N/A .320 - .380 N/A 5 RAD N/A .332 - .338
SXS31-125CY N/A NAS1329S5E-125 N/A 5/16-18 UNC-3B N/A .030 - .125 N/A BLANK N/A .413 - .423
SXS31-200CY N/A NAS1329S5E-200 N/A 5/16-18 UNC-3B N/A .125 - .200 N/A 1 RAD N/A .413 - .423
SXS31-275CY N/A NAS1329S5E-275 N/A 5/16-19 UNC-3B N/A .200 - .275 N/A 2 RAD N/A .413 - .423
SXS31-350CY N/A NAS1329S5E-350 N/A 5/16-18 UNC-3B N/A .275 - .350 N/A 3 RAD N/A .413 - .423
SXS31-425CY N/A NAS1329S5E-425 N/A 5/16-18 UNC-3B N/A .350 - .425 N/A 4 RAD N/A .413 - .423
SXS31-500CY N/A NAS1329S5E-500 N/A 5/16-18 UNC-3B N/A .425 - .500 N/A 5 RAD N/A .413 - .423
SXS37-115CY N/A NAS1329S6E-115 N/A 3/8-16 UNC-3B N/A .030 - .115 N/A BLANK N/A .490 - .500
SXS37-200CY N/A NAS1329S6E-200 N/A 3/8-16 UNC-3B N/A .115 - .200 N/A 1 RAD N/A .490 - .500
SXS37-285CY N/A NAS1329S6E-285 N/A 3/8-18 UNC-3B N/A .200 - .285 N/A 2 RAD N/A .490 - .500
SXS37-370CY N/A NAS1329S6E-370 N/A 3/8-16 UNC-3B N/A .285 - .370 N/A 3 RAD N/A .490 - .500
SXS37-455CY N/A NAS1329S6E-455 N/A 3/8-16 UNC-3B N/A .370 - .455 N/A 4 RAD N/A .490 - .500
SXS37-540CY N/A NAS1329S6E-540 N/A 3/8-16 UNC-3B N/A .455 - .540 N/A 5 RAD N/A .490 - .500
SXS50-150CY N/A NAS1329S8E-150 N/A 1/2-13 UNC-3B N/A .050 - .150 N/A BLANK N/A .625 - .635
SXS50-250CY N/A NAS1329S8E-250 N/A 1/2-13 UNC-3B N/A .150 - .250 N/A 1 RAD N/A .625 - .635
SXS50-350CY N/A NAS1329S8E-350 N/A 1/2-13 UNC-3B N/A .250 - .350 N/A 2 RAD N/A .625 - .635
SXS50-450CY N/A NAS1329S8E-450 N/A 1/2-13 UNC-3B N/A .350 - .450 N/A 3 RAD N/A .625 - .635
Unit of Measure
1 2