12-Point Flange Counterbore Screw, Alloy Steel, Plain Finish, Coarse Thread, 3/8-16 x 5"
(Pack of 10)

SKU:85304 Item#: 85304

Kent Automotive

• Countr-Bor Screws generate higher clamp loads because they are torqued through an external drive (socket); standard hex socket head screws are torqued by an internal drive (hex key)
• Heat-treated alloy steel
• Class 3A UNC threads
• Tensile strength: 180,000 PSI (up to and including 1/2" dia.); 170,000 PSI (over 1/2" dia.)
• ANSI Specification B1.1
• All dimensional properties meet IFI-115 and SAE J58 specifications
• Lawson Countr-Bor Screws can replace any standard hex socket head screw
• 12-point screw fits into same counter-bore hole – use standard 12 point socket
NOTE: Use a wrench or socket size which corresponds to the diameter of the screw. For example, a 5/16" dia. screw is installed by using a 5/16", 12 point standard socket.

Read More
Usually Ships: Today
While Supplies Last

Frequently Bought Together

DV_ZoomOriginal_P_2035_WB.jpg

Hex Flange Bolt Grade 10.9 M8-1.25 x 16mm

Item#: 55602
DV_ZoomOriginal_P_2035_WB.jpg

Hex Flange Bolt Grade 10.9 M10-1.25 x 30mm

Item#: 55608
DV_ZoomOriginal_P_2035_WB.jpg

Hex Flange Bolt Grade 10.9 M6-1 x 16mm

Item#: 28679
DV_ZoomOriginal_I_489.jpg

Open End Rivet Dome Head Aluminum 3/16"

Item#: 489
DV_ZoomOriginal_P_2035_WB.jpg

Hex Flange Bolt Grade 10.9 M8-1.25 x 20mm

Item#: 55603
DV_ZoomOriginal_P_2002.jpg

DIN 125A Flat Washer Grade 140 HV M6

Item#: 80261
DV_ZoomOriginal_P_2035_WB.jpg

Hex Flange Bolt Grade 10.9 M8-1.25 x 16mm

Item#: 55602
DV_ZoomOriginal_P_2035_WB.jpg

Hex Flange Bolt Grade 10.9 M10-1.25 x 30mm

Item#: 55608
DV_ZoomOriginal_P_2035_WB.jpg

Hex Flange Bolt Grade 10.9 M6-1 x 16mm

Item#: 28679
DV_ZoomOriginal_P_2035_WB.jpg

Hex Flange Bolt Grade 10.9 M8-1.25 x 16mm

Item#: 55602
DV_ZoomOriginal_P_11056.jpg

Serrated Hex Flange Nut Alloy Steel M6-1

Item#: 28699
DV_ZoomOriginal_P_2035_WB.jpg

Hex Flange Bolt Grade 10.9 M10-1.25 x 30mm

Item#: 55608
DV_ZoomOriginal_I_1365427.jpg

Fender Apron Drive Rivet 8mm Hole

Item#: 1365427
DV_ZoomOriginal_I_P86111.jpg

Cowl Bumper Fender Liner/Engine Under Cover Rivet

Item#: P86111
DV_ZoomOriginal_I_KT13998.jpg

Engine Under Cover Drive Rivet Plastic 7mm Hole

Item#: KT13998
DV_ZoomOriginal_I_DY81420015.jpg

11Pc Lock and Load Hammer Set

Item#: DY81420015
DV_ZoomOriginal_P_HT5437.jpg

8Pc Metric Mini Double Head Wrench Set

Item#: DY89250450
DV_ZoomOriginal_I_DY89320003.jpg

Comfort Grip Ergonomic Jumbo Awl, 4 pc Hook & Pick Set

Item#: DY89320003
DV_ZoomOriginal_I_DY81420015.jpg

11Pc Lock and Load Hammer Set

Item#: DY81420015
DV_ZoomOriginal_P_HT5437.jpg

8Pc Metric Mini Double Head Wrench Set

Item#: DY89250450
DV_ZoomOriginal_I_DY89320003.jpg

Comfort Grip Ergonomic Jumbo Awl, 4 pc Hook & Pick Set

Item#: DY89320003

Product Description

• Countr-Bor Screws generate higher clamp loads because they are torqued through an external drive (socket); standard hex socket head screws are torqued by an internal drive (hex key)
• Heat-treated alloy steel
• Class 3A UNC threads
• Tensile strength: 180,000 PSI (up to and including 1/2" dia.); 170,000 PSI (over 1/2" dia.)
• ANSI Specification B1.1
• All dimensional properties meet IFI-115 and SAE J58 specifications
• Lawson Countr-Bor Screws can replace any standard hex socket head screw
• 12-point screw fits into same counter-bore hole – use standard 12 point socket
NOTE: Use a wrench or socket size which corresponds to the diameter of the screw. For example, a 5/16" dia. screw is installed by using a 5/16", 12 point standard socket.

Technical Specifications

Item#: 85304
Type Counter-Bor
Diameter 3/8 "
Thread Pitch 16
Thread Coarse
Length 5 "
Finish Plain
Material Alloy Steel
Head Style 12-Point Flange
Size 3/8X5 "
Specifications IFI-115
Tensile Strength 180,000 PSI
UNSPSC #: 31161620
TAA Compliant: Yes
Weight: 1.68 lb

Your Recently Viewed Items