Hex Cap Screw, Grade 9, Alloy Steel, Zinc Finish, Coarse Thread, 3/8" Head Height, 3/4" Across Flats, 1/2-13 x 1-1/4", 20 Pieces per Pack
(Pack of 1)

SKU:XA661 Item#: XA661

Tru-Torq®

• Ultra-high-strength matched component fastening system
• 20% stronger than Grade 8
• Fatigue/vibration-resistant UNJ thread design
• 20% higher-than-normal wrenching surface for increased safety and even distribution of torque forces
• Heat-treated, quenched and tempered
• Perma Plated for superior corrosion protection
• Proprietary head marking for improved traceability
• Diameter marked on head for easy identification
• Trailing thread does not enter the extrusion angle
• Increased length of chamfer allows easier alignment and assembly
• Matched strength nuts, flat washers and lock nuts available
• Minimum 180,000 PSI tensile strength
• Exceeds SAE, ASTM and Military Grade 8 strength requirements
• Designed for the most demanding maintenance requirements
• For use in critical applications
Minimum Threaded Length – Up to 6" Long: (2 x Diameter) + 1/4"; Over 6" Long: (2 x Diameter) + 1/2

Read More

Frequently Bought Together

DV_ZoomOriginal_P_516.jpg

Hex Cap Screw Property Class 10.9 M6-1 x 15mm

Item#: 4266
DV_ZoomOriginal_P_41097_WB.jpg

Hex Cap Screw Grade 8 Alloy Steel 5/16-18 x 1-1/2"

Item#: 619
DV_ZoomOriginal_P_30579_WB.jpg

Hex Cap Screw Grade 8 5/8-11 x 1-1/2"

Item#: FA68096
DV_ZoomOriginal_P_516.jpg

Hex Cap Screw Property Class 10.9 M6-1 x 15mm

Item#: 4266
DV_ZoomOriginal_P_41097_WB.jpg

Hex Cap Screw Grade 8 Alloy Steel 5/16-18 x 1-1/2"

Item#: 619
DV_ZoomOriginal_P_30579_WB.jpg

Hex Cap Screw Grade 8 5/8-11 x 1-1/2"

Item#: FA68096
DV_ZoomOriginal_P_32671.jpg

Hex Nut Grade 8 Steel 1/4-20

Item#: FA68400
DV_ZoomOriginal_P_32673.jpg

Hex Nut Grade 5 Steel 5/8-11

Item#: FA95683
DV_ZoomOriginal_I_FA68034_WB.jpg

Hex Cap Screw Grade 8 3/8-16 x 1-1/2"

Item#: FA68034
DV_ZoomOriginal_I_DY80170020.jpg

3/16" - 1/2" Cryonitride Spiral Fluted Step Drill - 5/16" Shank

Item#: DY80170020
DV_ZoomOriginal_P_514.jpg

Hex Cap Screw Property Class 12.9 M20-2.5 x 80mm

Item#: 84502A
DV_ZoomOriginal_P_516.jpg

Hex Cap Screw Property Class 10.9 M6-1 x 35mm

Item#: 80206
DV_ZoomOriginal_P_31312.jpg

IFI 100/107 Top Locknut Grade C 1/4-20

Item#: 80927
DV_ZoomOriginal_P_506_WB.jpg

Self-Drilling Screw Hex Head #10-16 x 1"

Item#: 84932
DV_ZoomOriginal_P_33479.jpg

SAE J995C Locknut with Nylon Insert Grade 8 3/4-10

Item#: 53986
DV_ZoomOriginal_P_33479.jpg

SAE J995C Locknut with Nylon Insert Grade 8 5/8-11

Item#: 53985
DV_ZoomOriginal_P_HT5222.jpg

Interchangeable Hex Bit Set 20Pc Torx

Item#: DY89310522
DV_ZoomOriginal_I_88439.jpg

SAE Flat Washer Thru-Hardened Steel 1/2"

Item#: 88439

Product Description

• Ultra-high-strength matched component fastening system
• 20% stronger than Grade 8
• Fatigue/vibration-resistant UNJ thread design
• 20% higher-than-normal wrenching surface for increased safety and even distribution of torque forces
• Heat-treated, quenched and tempered
• Perma Plated for superior corrosion protection
• Proprietary head marking for improved traceability
• Diameter marked on head for easy identification
• Trailing thread does not enter the extrusion angle
• Increased length of chamfer allows easier alignment and assembly
• Matched strength nuts, flat washers and lock nuts available
• Minimum 180,000 PSI tensile strength
• Exceeds SAE, ASTM and Military Grade 8 strength requirements
• Designed for the most demanding maintenance requirements
• For use in critical applications
Minimum Threaded Length – Up to 6" Long: (2 x Diameter) + 1/4"; Over 6" Long: (2 x Diameter) + 1/2

Technical Specifications

Item#: XA661
Style Premium
Diameter 1/2 "
Thread Pitch 13
Thread Coarse
Length 1-1/4 "
Type Hex Cap Screw
Across Flats 3/4 "
Material Alloy Steel
Grade 9
Finish Bright Zinc
Tensile Strength 180,000 PSI
Head Style High Hex
Head Height 3/8 "
Thread Form UNJ
Thread Length Full
Thread Length Minimum Full
Quantity Per Package 20
UNSPSC #: 31161501
TAA Compliant: Yes
Weight: 2.06 lb

Product Restrictions

Your Recently Viewed Items