(1650 pcs) 1/4'-20 X 3-1/4', Carriage Bolts, Round Head, Square Neck, Full Thread, Grade 5 Steel, Zinc

Also known as coach bolts, are typically used to fasten metal to wood. The square neck under the head locks the bolt into place. The heads of grade 5 steel fasteners are typically marked with 3 raised radial lines. Grade 5 steel fasteners have a minimum tensile strength of 105,000 pounds per square inch. Can be used as a security fastener. The smooth head prevents unfastening from the head side.DIMENSIONAL ATTRIBUTES Diameter (Nominal): 1/4' Thread Pitch: 20 Diameter (Dimension): 0.25' Diameter (Minimum): 0.237' Diameter (Maximum): 0.26' Length (Nominal): 3-1/4' Thread Length (Nominal): 3.094' Neck Width: 0.26' Neck Height: 0.156' Head Diameter (Minimum): 0.563' Head Diameter (Maximum): 0.594' Head Height, Overall (Minimum): 0.125' Head Height, Overall (Maximum): 0.145'PRODUCT ATTRIBUTES Category: Carriage Bolts System of Measurement: Inch Brand: Aspen Fasteners Head Style: Round Head Head Style Detail: Square Neck Head Markings: Three radial lines 120 degrees apart and manufacturer ID Thread Length: Full Thread Thread Direction: Right-Hand Thread Material: Steel Material Grade: Grade 5 Coating: Zinc Plated Coating Color: Clear Origin: Origin Undefined Standards and Specifications: ASME B18.5 and SAE J429

Features & Specs

• Exterior Finish : Zinc
• Grade Rating : Grade 5
• Item Hardness : Grade 5
• Manufacturer Grade : Grade 5
• Screw Head Style : Round
• Thread Size : 1/4'-20
• Thread Style : Right Hand

Item details

• ASIN : B0B8142MP5
• Brand : ASPEN FASTENERS
• Item Weight : 67.44 Pounds
• Manufacturer : Aspen Fasteners
• Number Of Items : 1
• Part Number : BO004-1420X314-001650
• UPC : 698435944909
• Unit Count : 1650.0 Count

Materials & Care

• Exterior Finish : Zinc
• Material Type : Medium Carbon Steel

Measurements

• Item Dimensions : 3.25 x 0.25 x 3.25 inches
• Item Weight : 67.44 Pounds
• Size Name : 1/4'-20 X 3-1/4'
• Thread Coverage : Fully Threaded
• Thread Size : 1/4'-20