Item # SXS31-481CY, NAS 1330 Countersunk Head Style On Sherex Fastening Solutions, LLC

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Part number reflects steel, open-end, non-keyed, with cadmium yellow plating only.

Please refer to the part numbering system above for further configurations.

All dimensions below are in inches.

Unit of Measure

Specifications
Resources

NAS Part Number	N/A NAS1330S5E-481
Thread Size	N/A 5/16-18 UNC-3B
Grip Range (Min. - Max.)	N/A .406 - .481
Identifying Mark	N/A 4 RAD
A ± .015	N/A 1.156
M REF	N/A 0.555
L ± .015 (Closed End Keyless)	N/A 1.562
J NOM (Closed End Keyless)	N/A 0.960
K NOM (Closed End Keyless)	N/A 0.555
L ± .015 (Closed End Keyed)	N/A 1.562
J NOM (Closed End Keyed)	N/A 0.960
K NOM (Closed End Keyed)	N/A 0.555
ØB ± .015	N/A 0.656
C NOM	N/A 0.104
ØD +.000/-.004	N/A 0.413
Install Drill Size REF	N/A Z
Install Hole Size Min. - Max.	N/A .413 - .423
E MAX	N/A 0.505
F +.005/-.000	N/A 0.120
P +.003/-.000	N/A 0.128
H	N/A .097 - .102
Pull Up Factor	N/A .120

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NAS Part Number

Thread Size

Grip Range (Min. - Max.)

Identifying Mark

A ± .015

M REF

L ± .015 (Closed End Keyless)

J NOM (Closed End Keyless)

K NOM (Closed End Keyless)

L ± .015 (Closed End Keyed)

J NOM (Closed End Keyed)

K NOM (Closed End Keyed)

ØB ± .015

C NOM

ØD +.000/-.004

Install Drill Size REF

Install Hole Size Min. - Max.

E MAX

F +.005/-.000

P +.003/-.000

H

Pull Up Factor

Grip Range
(Min. - Max.)

A
± .015

M
REF

L
± .015 (Closed End Keyless)

J
NOM (Closed End Keyless)

K
NOM (Closed End Keyless)

L
± .015 (Closed End Keyed)

J
NOM (Closed End Keyed)

K
NOM (Closed End Keyed)

ØB
± .015

C
NOM

ØD
+.000/-.004

Install Drill Size
REF

Install Hole Size
Min. - Max.

E
MAX

F
+.005/-.000

P
+.003/-.000