2Pcs Square Head Bolts, 3/8-16x4" Square Machine Screws Oxidized Black Carbon Steel, T-Bolt for Machinery Railroad Electrical Connections

★★★★★ 5.0 121 reviews

$90.00
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Management number 211259806 Release Date 2026/04/04 List Price $36.00 Model Number 211259806
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Description: 1. Material: Square head bolts are made of carbon steel, durable, with fine workmanship, high strength, good corrosion resistance, wear and impact resistance, difficult to damage and with long service life. 2. Design: These bolts have a square head that ensures better torque transmission and more stable performance. Their thread is very smooth and accurate, the force is evenly distributed, without deviation, and they will not slip easily. The half-net design effectively prevents spontaneous loosening, ensuring a solid connection and improving tensile strength. 3. Easy to use: Simple installation, can be tightened with a wrench or clamps. Disassembly is also relatively easy, suitable for situations requiring frequent maintenance or replacement. 4. Wide Application: Square machine screws are essential for assembling machines, equipment and tools to maintain their structural integrity. They are widely used in mechanical equipment, building structures and automotive manufacturing, such as for assembling and fixing railings, household appliances, pipe installations, equipment, steel frame houses, etc. Specification: Material: Carbon Steel Surface: Oxidized Black Colour: black. Thread Size: 3/8-16x4"(D*L) Bolt length: 100 mm/3.94 inches. Thread length: 50 mm/1.97 inches. Head size: 14.3 mm x 6 mm/0.56 x 0.24 inches (W*T). Package contents: 2 x square head bolts

  • Square Head Bolt: Surface: Black Oxidised; Colour: Black; Thread Size: 3/8-16x4 inches (D*L); Bolt Length: 100 mm/3.94 inches; Thread Length: 50 mm/1.97 inches; Head Size: 14.3 mm x 6 mm/0.56 inches x 0.24 inches (W*T); Contents of Packaging: 2. Pcs x Square Head Bolts
  • Material: Square head bolts are made of carbon steel, durable, with fine workmanship, high strength, good corrosion resistance, wear resistance and impact resistance, difficult to damage and with long service life
  • Design: These bolts have square head, smooth and precise thread, uniform force distribution, no deviation, and slide difficult. Half net design effectively prevents spontaneous loosening
  • Easy to use: Simple installation, can be tightened with a wrench or clamps. Disassembly is also relatively easy, suitable for situations requiring frequent maintenance or replacement
  • Wide Application: Square machine screws are widely used in mechanical equipment, building structures and automotive manufacturing, such as for assembling and fixing railings, home appliances, pipe installations, equipment, steel frame houses, etc
Brand QUARKZMAN
Unit Count 2.0 Count
Part Number 000181ff240920qmaneu
Thread Size 3/8"-16
Thread Type Unc
Manufacturer QUARKZMAN
Thread Style Right Hand
Material Type Carbon Steel
Item Dimensions 3.94 x 0.24 x 0.56 inches
Thread Coverage Partially Threaded

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