HDG Hex Head Bolt Assembly ASTM A320M Grade L7, 3/4″ × 140 mm, 3/4″-10 UNC, complete with 2 pcs HDG Hex Nut ASTM A194M Grade 7ML | ID: 46691
HDG HEX HEAD BOLT ASSEMBLY (COMPLETE SET)
HDG HEX HEAD BOLT
Standard: ASTM A320 / A320M
Grade: L7
Size: 3/4″ × 140 mm
Thread: 3/4″–10 UNC
Type: Hex Head Bolt
Coating: Hot Dip Galvanized (HDG)
Including:
HDG HEX NUT — 2 pcs
Standard: ASTM A194 / A194M
Grade: 7ML (fully compatible with ASTM A320 Grade L7 bolts, suitable for low-temperature service)
Thread: 3/4″–10 UNC
Coating: Hot Dip Galvanized (HDG)
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Description
HDG Hex Head Bolt Assembly ASTM A320M Grade L7, 3/4″×140 mm, 3/4″-10 UNC
Hex Head Bolt, Hot Dip Galvanized (HDG), manufactured in accordance with ASTM A320 / A320M, Strength Grade L7. ASTM A320 / A320M covers bolts for low-temperature service and high-strength structural applications. Grade L7 provides high strength and toughness, making it suitable for critical bolted connections, especially under dynamic or low-temperature conditions.
Nominal diameter: 3/4″
Length (under head to end): 140 mm
Thread standard: Unified National Coarse (UNC), typically 3/4″–10 UNC (confirm with buyer whether UNC or UNF is required).
The bolt is made of alloy steel and heat treated to meet the mechanical properties of ASTM A320M Grade L7, offering high tensile strength and enhanced toughness compared to standard carbon steel bolts.
Hot Dip Galvanized (HDG) coating provides corrosion protection in accordance with ASTM A153 (or equivalent). Typical coating thickness and adhesion requirements shall be specified in the purchase order.