Custom A2-70 Stainless Steel 304 Square Flat Head Bolt Enquiries | Sheet Metal Nut and Thread Requirements
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Model NumberYS001Header styleHexagon, T head, eye, flange, round
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surface treatmentpassivationthreadMetric system of inches
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Class4.8, 5.6, 6.8, 8.8, 10.9, SS304 SS316Available materialsCarbon steel, high-strength steel, stainless steel
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shipping packaging20-25 kg cardboard boxes + 900 kg per palletHS codeChinese wholesale
Specify square or transverse head geometry for the fabrication request. The photograph shows transverse-head bolts with hex nuts; it does not certify the square-flat-head wording or A2-70 class.
Dimension the bolt and mating nut together
Provide head bearing face, under-head length, diameter, pitch and required engagement. Include sheet thickness and the actual contact arrangement in the joint drawing.
Select one material and applicable fastener class
SS304, SS316, carbon steel and high-strength steel are separate material choices. A2-70 and the general carbon-steel class menu are not interchangeable ratings or proof of delivered strength.
- Select the actual head and joint drawing.
- Define the thread standard and engagement.
- Specify material condition and property class.
- Agree passivation and supplied-nut scope.
- Set bolt dimensions and the joint mechanical acceptance.
Confirm evidence for fabrication duty
State quantities, tightening requirements and service conditions. Fit, load capacity and corrosion performance need applicable fastener records for the chosen configuration rather than general durability claims.

The A2-70 Custom Stainless Steel 304 Square Flat Head Bolt is an ideal fastener designed for professional sheet metal fabrication. Manufactured from premium SS304 stainless steel, these bolts deliver excellent corrosion resistance and durability, making them perfect for use in demanding industrial environments.

Our square flat head bolts are available in a variety of head styles such as hexagon, T head, eye, flange, and round to meet the diverse needs of different applications. They undergo passivation surface treatment to further enhance their long-term performance and maintain a clean, bright finish.

We offer a full range of thread sizes in both metric and inch systems, with strength classes ranging from 4.8 up to 10.9, as well as SS304 and SS316 options for higher strength and corrosion resistance. Each bolt is precisely manufactured to ensure a secure fit and reliable fastening in your projects.

Whether you require carbon steel, high-strength steel, or stainless steel bolts, we can supply according to your specifications. Shipments are safely packed in sturdy cardboard boxes and pallets for convenient B2B factory wholesale worldwide.

