Howmet Fastening Systems
Howmet Fastening Systems
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Stud-Assembly-Flush-Head-Cross-Recess
Unit of Measure
1 

Item #

Head Type

Stud Material

Cup Material

Stud & Cup Finish

L

S

27S3-1 N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2 N/A 0.391-0.406 in N/A 0.610 in
27S3-1A N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2 N/A 0.391-0.406 in N/A 0.610 in
27S3-1C N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Zinc Plate per ASTM B633, Type III, Class 5 (Clear Chromate) N/A 0.391-0.406 in N/A 0.610 in
27S3-1D N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Chrome Plate per QQ-C-320, Class I, Type I (Bright) N/A 0.391-0.406 in N/A 0.610 in
27S3-1E N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Class 2 (Clear Chromate) N/A 0.391-0.406 in N/A 0.610 in
27S3-1F N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Zinc Plate per ASTM B633, Type II, Class 8 (Yellow Chromate) N/A 0.391-0.406 in N/A 0.610 in
27S3-1S N/A #2 Cross Recess N/A 300 Series CRES per QQ-S-763, ASTM A276, or ASTM A580 N/A 300 Series CRES per ASTM A167 N/A Passivate per ASTM A967 N/A 0.391-0.406 in N/A 0.610 in
27S3-2 N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2 N/A 0.421-0.436 in N/A 0.640 in
27S3-2A N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2 N/A 0.421-0.436 in N/A 0.640 in
27S3-2C N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Zinc Plate per ASTM B633, Type III, Class 5 (Clear Chromate) N/A 0.421-0.436 in N/A 0.640 in
27S3-2D N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Chrome Plate per QQ-C-320, Class I, Type I (Bright) N/A 0.421-0.436 in N/A 0.640 in
27S3-2E N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Class 2 (Clear Chromate) N/A 0.421-0.436 in N/A 0.640 in
27S3-2F N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Zinc Plate per ASTM B633, Type II, Class 8 (Yellow Chromate) N/A 0.421-0.436 in N/A 0.640 in
27S3-2S N/A #2 Cross Recess N/A 300 Series CRES per QQ-S-763, ASTM A276, or ASTM A580 N/A 300 Series CRES per ASTM A167 N/A Passivate per ASTM A967 N/A 0.421-0.436 in N/A 0.640 in
27S3-3 N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2 N/A 0.451-0.466 in N/A 0.670 in
27S3-3A N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2 N/A 0.451-0.466 in N/A 0.670 in
27S3-3C N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Zinc Plate per ASTM B633, Type III, Class 5 (Clear Chromate) N/A 0.451-0.466 in N/A 0.670 in
27S3-3D N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Chrome Plate per QQ-C-320, Class I, Type I (Bright) N/A 0.451-0.466 in N/A 0.670 in
27S3-3E N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Class 2 (Clear Chromate) N/A 0.451-0.466 in N/A 0.670 in
27S3-3F N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Zinc Plate per ASTM B633, Type II, Class 8 (Yellow Chromate) N/A 0.451-0.466 in N/A 0.670 in
27S3-3S N/A #2 Cross Recess N/A 300 Series CRES per QQ-S-763, ASTM A276, or ASTM A580 N/A 300 Series CRES per ASTM A167 N/A Passivate per ASTM A967 N/A 0.451-0.466 in N/A 0.670 in
27S3-4 N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2 N/A 0.481-0.496 in N/A 0.700 in
27S3-4A N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2 N/A 0.481-0.496 in N/A 0.700 in
27S3-4C N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Zinc Plate per ASTM B633, Type III, Class 5 (Clear Chromate) N/A 0.481-0.496 in N/A 0.700 in
27S3-4D N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Chrome Plate per QQ-C-320, Class I, Type I (Bright) N/A 0.481-0.496 in N/A 0.700 in
27S3-4E N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Class 2 (Clear Chromate) N/A 0.481-0.496 in N/A 0.700 in
27S3-4F N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Zinc Plate per ASTM B633, Type II, Class 8 (Yellow Chromate) N/A 0.481-0.496 in N/A 0.700 in
27S3-4S N/A #2 Cross Recess N/A 300 Series CRES per QQ-S-763, ASTM A276, or ASTM A580 N/A 300 Series CRES per ASTM A167 N/A Passivate per ASTM A967 N/A 0.481-0.496 in N/A 0.700 in
27S3-5 N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2 N/A 0.511-0.526 in N/A 0.730 in
27S3-5A N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2 N/A 0.511-0.526 in N/A 0.730 in
27S3-5C N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Zinc Plate per ASTM B633, Type III, Class 5 (Clear Chromate) N/A 0.511-0.526 in N/A 0.730 in
27S3-5D N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Chrome Plate per QQ-C-320, Class I, Type I (Bright) N/A 0.511-0.526 in N/A 0.730 in
27S3-5E N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Class 2 (Clear Chromate) N/A 0.511-0.526 in N/A 0.730 in
27S3-5F N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Zinc Plate per ASTM B633, Type II, Class 8 (Yellow Chromate) N/A 0.511-0.526 in N/A 0.730 in
27S3-5S N/A #2 Cross Recess N/A 300 Series CRES per QQ-S-763, ASTM A276, or ASTM A580 N/A 300 Series CRES per ASTM A167 N/A Passivate per ASTM A967 N/A 0.511-0.526 in N/A 0.730 in
27S3-6 N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2 N/A 0.541-0.556 in N/A 0.760 in
27S3-6A N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2 N/A 0.541-0.556 in N/A 0.760 in
27S3-6C N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Zinc Plate per ASTM B633, Type III, Class 5 (Clear Chromate) N/A 0.541-0.556 in N/A 0.760 in
27S3-6D N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Chrome Plate per QQ-C-320, Class I, Type I (Bright) N/A 0.541-0.556 in N/A 0.760 in
27S3-6E N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Class 2 (Clear Chromate) N/A 0.541-0.556 in N/A 0.760 in
27S3-6F N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Zinc Plate per ASTM B633, Type II, Class 8 (Yellow Chromate) N/A 0.541-0.556 in N/A 0.760 in
27S3-6S N/A #2 Cross Recess N/A 300 Series CRES per QQ-S-763, ASTM A276, or ASTM A580 N/A 300 Series CRES per ASTM A167 N/A Passivate per ASTM A967 N/A 0.541-0.556 in N/A 0.760 in
27S3-7 N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2 N/A 0.571-0.586 in N/A 0.790 in
27S3-7A N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2 N/A 0.571-0.586 in N/A 0.790 in
27S3-7C N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Zinc Plate per ASTM B633, Type III, Class 5 (Clear Chromate) N/A 0.571-0.586 in N/A 0.790 in
27S3-7D N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Chrome Plate per QQ-C-320, Class I, Type I (Bright) N/A 0.571-0.586 in N/A 0.790 in
27S3-7E N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Class 2 (Clear Chromate) N/A 0.571-0.586 in N/A 0.790 in
27S3-7F N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Zinc Plate per ASTM B633, Type II, Class 8 (Yellow Chromate) N/A 0.571-0.586 in N/A 0.790 in
27S3-7S N/A #2 Cross Recess N/A 300 Series CRES per QQ-S-763, ASTM A276, or ASTM A580 N/A 300 Series CRES per ASTM A167 N/A Passivate per ASTM A967 N/A 0.571-0.586 in N/A 0.790 in
27S3-8 N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2 N/A 0.601-0.616 in N/A 0.820 in
27S3-8A N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2 N/A 0.601-0.616 in N/A 0.820 in
27S3-8C N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Zinc Plate per ASTM B633, Type III, Class 5 (Clear Chromate) N/A 0.601-0.616 in N/A 0.820 in
27S3-8D N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Chrome Plate per QQ-C-320, Class I, Type I (Bright) N/A 0.601-0.616 in N/A 0.820 in
27S3-8E N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Class 2 (Clear Chromate) N/A 0.601-0.616 in N/A 0.820 in
27S3-8F N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Zinc Plate per ASTM B633, Type II, Class 8 (Yellow Chromate) N/A 0.601-0.616 in N/A 0.820 in
27S3-8S N/A #2 Cross Recess N/A 300 Series CRES per QQ-S-763, ASTM A276, or ASTM A580 N/A 300 Series CRES per ASTM A167 N/A Passivate per ASTM A967 N/A 0.601-0.616 in N/A 0.820 in
27S3-9 N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2 N/A 0.631-0.646 in N/A 0.850 in
27S3-9A N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2 N/A 0.631-0.646 in N/A 0.850 in
27S3-9C N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Zinc Plate per ASTM B633, Type III, Class 5 (Clear Chromate) N/A 0.631-0.646 in N/A 0.850 in
27S3-9D N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Chrome Plate per QQ-C-320, Class I, Type I (Bright) N/A 0.631-0.646 in N/A 0.850 in
27S3-9E N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Class 2 (Clear Chromate) N/A 0.631-0.646 in N/A 0.850 in
27S3-9F N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Zinc Plate per ASTM B633, Type II, Class 8 (Yellow Chromate) N/A 0.631-0.646 in N/A 0.850 in
27S3-9S N/A #2 Cross Recess N/A 300 Series CRES per QQ-S-763, ASTM A276, or ASTM A580 N/A 300 Series CRES per ASTM A167 N/A Passivate per ASTM A967 N/A 0.631-0.646 in N/A 0.850 in
27S3-10 N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2 N/A 0.661-0.676 in N/A 0.880 in
27S3-10A N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Type II, Class 2 N/A 0.661-0.676 in N/A 0.880 in
27S3-10C N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Zinc Plate per ASTM B633, Type III, Class 5 (Clear Chromate) N/A 0.661-0.676 in N/A 0.880 in
27S3-10D N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Chrome Plate per QQ-C-320, Class I, Type I (Bright) N/A 0.661-0.676 in N/A 0.880 in
27S3-10E N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Cadmium Plate per AMS-QQ-P-416, Class 2 (Clear Chromate) N/A 0.661-0.676 in N/A 0.880 in
27S3-10F N/A #2 Cross Recess N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108 N/A Steel per ASTM A109 N/A Zinc Plate per ASTM B633, Type II, Class 8 (Yellow Chromate) N/A 0.661-0.676 in N/A 0.880 in
27S3-10S N/A #2 Cross Recess N/A 300 Series CRES per QQ-S-763, ASTM A276, or ASTM A580 N/A 300 Series CRES per ASTM A167 N/A Passivate per ASTM A967 N/A 0.661-0.676 in N/A 0.880 in
Unit of Measure
1