304/410 Stainless Steel Carbon Steel Black-Zinc Plated Hex Head Self-Drilling Screws

Product Description

304/410 Stainless Steel Carbon Steel Black-Zinc Plated Hex Head Self-Drilling Screws is recommended for sheet metal and enclosure assembly and related OEM fastening projects where 304/410 stainless steel carbon steel, Black, black-zinc plated, and Hex need to match the final assembly rather than a generic stock screw.

Typical Applications

• Sheet metal and enclosure assembly.
• Hvac, roofing or light metal fabrication.
• Production lines seeking fewer pre-drilling steps.

Parameter Notes for RFQ Review

• Stainless steel supports corrosion resistance and clean appearance in equipment, electronics and outdoor-facing assemblies.
• Black oxide or black zinc improves dark appearance and basic surface protection; confirm corrosion target if used outdoors.
• A hex or hex socket style supports higher installation torque and controlled tightening.
• The listed thread range (8#M4.2 10#M4.8 12#M5.5 14#M6.3) indicates which metric or gauge families can be reviewed for the same product style. The length range (13mm-150mm) should be checked against clamping thickness, thread engagement and clearance behind the assembly.
• Drive note: External hex drive or hex head geometry. Confirm driver access, assembly torque and whether service teams need matching tools.

Suitable OEM / RFQ Needs

Best fit for OEM/RFQ buyers who need sheet metal and enclosure assembly, HVAC, roofing or light metal fabrication, with review of material (304/410 stainless steel carbon steel), finish (Black, black-zinc plated), thread range (8#M4.2 10#M4.8 12#M5.5 14#M6.3) and length (13mm-150mm). Send drawings, target quantity, application load/environment and any sample photos for a practical quotation.

Buyer Questions

• Can this product be customized from a drawing or sample? Yes. XiYu can review drawings or samples for custom dimensions, material, finish, head style and production quantity. For this item, start from the listed 304/410 stainless steel carbon steel / Black, black-zinc plated direction and confirm any changes in the RFQ.
• Does this screw need a pilot hole? Self-drilling styles can reduce or remove the pre-drilling step in suitable sheet metal. Self-tapping or thread-forming styles may still need a pilot hole depending on material thickness and hardness.
• What RFQ information helps speed up quotation? Provide thread size (8#M4.2 10#M4.8 12#M5.5 14#M6.3), length (13mm-150mm), material, finish, drawing or photo, target quantity, application environment and whether samples are required.
• Can samples be reviewed before bulk production? Sample review can be discussed for custom or production RFQs. For appearance-critical or functional screws, sample approval helps confirm finish, fit and assembly behavior before mass production.