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العربية DIN 7982 countersunk self tapping screws wholesale supplier
XZ Fastener supplies DIN 7982 countersunk self tapping screws for wholesale buyers, distributors, and assembly suppliers that need flush-head fastening, stable cartons, and repeatable finish quality. These screws are used in sheet metal panels, electrical housings, appliance covers, plastic components, and light-duty assemblies where the head should sit level with the surface. Material, drive recess, point style, coating, carton quantity, small box packing, barcode labels, and pallet method can be arranged according to order requirement. Buyers reviewing related fastener products can send one consolidated inquiry for review.
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Quick Specs
What Buyers Should Know Before Sourcing DIN 7982 Countersunk Self Tapping Screws
DIN 7982 screws are self tapping screws with a countersunk head. They are selected when the installed head should sit flush or nearly flush with the surface. Wholesale buyers should confirm countersunk seat, panel thickness, pilot hole size, drive recess, material, finish, carton quantity, and installation torque before ordering.
These screws are not self drilling screws. A prepared hole is normally required, and the countersunk seat must match the mating part. For private labels, special head dimensions, or mixed standard and drawing-based items, XZ Fastener can review related custom fasteners before quotation. Buyers checking dimensional references may also use this DIN and ISO fastener standards guide.
Common Purchasing Descriptions
Wholesale buyers often consolidate DIN 7982 screws with other standard fasteners in one shipment. XZ Fastener can quote DIN 7982 countersunk self tapping screws together with DIN 933 full thread hex bolts, Grade 8.8 carbon steel hex bolts, metric hex head bolts, zinc plated DIN 933 bolts, black oxide DIN 933 bolts, and hot dip galvanized DIN 933 bolts when the complete item list is provided.
| Buyer Description | Typical Meaning | Details to Confirm |
|---|---|---|
| DIN 7982 countersunk self tapping screws | Flush-head tapping screws according to DIN 7982 | Diameter, length, drive, point style, material, and finish. |
| Flat head self tapping screws | Market description often used for countersunk tapping screws | Confirm whether DIN 7982 dimensions and head angle are required. |
| Cross recessed countersunk tapping screws | DIN 7982 style screws with cross recess | Check recess type, bit fit, and assembly tool condition. |
| Zinc plated DIN 7982 screws wholesale | Common coated screw version for distributor supply | Confirm finish color, carton marks, small box packing, and corrosion expectation. |
Detailed Specifications Table
| Specification Item | Available Options | Wholesale Buying Checkpoint |
|---|---|---|
| Product name | DIN 7982 countersunk self tapping screws | Confirm if DIN 7982 is mandatory or if equivalent dimensions are acceptable. |
| Head type | Countersunk head | Check countersunk seat, head diameter, flush-fit requirement, and surface clearance. |
| Drive type | Cross recessed commonly supplied; other drive types available upon request | Match drive type to assembly tools, resale description, and buyer drawing. |
| Thread type | Self tapping thread for prepared holes | Pilot hole size should be tested with actual sheet or plastic material. |
| Size range | Metric sizes according to order requirement | Provide diameter x length and quantity for each size. |
| Material | Carbon steel, stainless steel A2/A4, selected custom materials | Select based on tapping performance, corrosion exposure, and assembly condition. |
| Surface finish | Zinc plated, black oxide, nickel plated, phosphate, plain, custom coating | Confirm coating color, thickness target, storage condition, and customer expectation. |
| Wholesale packing | Bulk carton, inner bag, small box, label, barcode, pallet | Define carton quantity, box label, master carton weight, and pallet dimensions early. |
Material and Grade Explanation
Carbon Steel
Carbon steel DIN 7982 screws are commonly used for wholesale supply because they support practical tapping performance and flexible surface treatment. Case hardening can help the thread form into sheet metal, while controlled core toughness helps reduce breakage during installation. Buyers should confirm whether hardness records or trial assembly testing are required.
Stainless Steel
Stainless steel A2 and A4 options are selected when corrosion resistance matters more than the tapping behavior of case-hardened carbon steel. Stainless tapping screws should be tested with the real receiving material because installation torque and thread forming behavior may differ from carbon steel parts.
If the same wholesale order includes stronger load-bearing parts, buyers can review XZ Fastener’s high-strength fasteners and combine them with DIN 7982 screws for one supply plan.
Surface Finish Selection Guide
| Finish | Typical Wholesale Use | Selection Advice |
|---|---|---|
| Zinc plated | General indoor sheet metal, appliance, and electrical assemblies | Confirm blue white, white, yellow, or other finish color before production. |
| Black oxide | Dark appearance for limited-corrosion applications | Usually needs oil protection and moisture-conscious packing. |
| Nickel plated | Clean appearance and selected electrical or decorative assemblies | Confirm surface brightness and appearance sample if needed. |
| Phosphate | Dark surface with oil retention | Corrosion resistance should be checked against storage and service conditions. |
| Custom coating | Project-specific color, corrosion, or handling requirement | Written coating requirements or samples help reduce approval risk. |
When finish consistency is important for resale, warehouse storage, or repeated wholesale orders, compare available coated fasteners before confirming the shipment batch.
Manufacturing and Quality Control
DIN 7982 countersunk self tapping screws require stable wire selection, cold heading, countersunk head forming, recess forming, thread rolling, heat treatment, surface treatment, sorting, and packing. Because the head must sit flush, inspection should pay close attention to head diameter, countersunk angle, recess depth, thread condition, and burr control.
- Incoming wire material can be checked according to order requirement.
- Head shape, countersunk profile, recess depth, and thread form should be monitored during production.
- Heat treatment and coating records can be supplied when required.
- Random checks may include dimensions, appearance, drive fit, and packing accuracy.
- Wholesale packing checks should cover quantity, small box labels, carton marks, pallet marks, and batch separation.
For private labels, barcode packaging, or special inspection plans, XZ Fastener’s customized service can help align wholesale details before order release.
Applications
| Application Area | Why DIN 7982 Is Used | Important Check |
|---|---|---|
| Electrical panels | Countersunk head helps create a flush fastening surface. | Confirm panel countersink and coating requirement. |
| Appliance covers | Useful where the screw head should not protrude from the surface. | Check head fit, drive recess, and installation torque. |
| Plastic housings | Tapping thread can form engagement in selected plastic bosses. | Test boss design, pilot hole, screw length, and crack risk. |
| Light sheet metal assemblies | Suitable for prepared holes where flush appearance is needed. | Do not replace engineered bolts without approval. |
When the same wholesale order includes screws, bolts, nuts, and washers, buyers can also review XZ Fastener’s industrial bolts for compatible shipment planning.
How to Get a Faster Quotation
- Send the DIN 7982 size list with diameter, length, and quantity per size.
- Confirm material, such as carbon steel, stainless steel A2, or stainless steel A4.
- State drive type, point style, surface finish, color, and corrosion expectation.
- Provide small box quantity, barcode label, carton marks, pallet size, and shipping method.
- List inspection documents, sample approval needs, repeated order schedule, and destination market.
Wholesale quotations are clearer when buyers include whether the order is for distributor stock, private-label resale, direct factory assembly, or project delivery. You can contact XZ Fastener with a spreadsheet or drawing package for review.
FAQ
Can DIN 7982 countersunk self tapping screws be supplied for wholesale orders?
Yes. DIN 7982 screws can be supplied according to size list, material, finish, packing, and inspection requirements. Buyers should provide quantity by each size for accurate quotation and shipment planning.
Are DIN 7982 screws the same as self drilling screws?
No. DIN 7982 screws are self tapping screws and usually require a prepared pilot hole. Self drilling screws have a drill point and are used for a different installation method.
What should be checked for countersunk head fit?
Buyers should check head diameter, countersunk seat, panel thickness, installation depth, and whether the head must sit flush with the surface after assembly.
Which material is commonly used for DIN 7982 screws?
Carbon steel is common for general tapping performance and coating flexibility. Stainless steel A2 or A4 may be selected when corrosion resistance is more important.
Can XZ Fastener supply small boxes or private labels?
Small boxes, barcode labels, carton marks, inner bags, and pallet marks can be discussed according to order requirement. Packing details should be confirmed before production.
Can inspection documents be provided?
Inspection documents can be supplied according to order requirement. Buyers should state dimensional reports, material records, coating checks, sample approval, or third-party inspection needs before order confirmation.
Send Your DIN 7982 Wholesale Inquiry
To prepare a clear quotation, send your size list, finish, quantity, packaging method, and inspection requirements. If available, include drawings, samples, pilot hole information, countersunk seat details, small box labels, barcode requirements, pallet plan, destination market, and delivery schedule. XZ Fastener will review the details and confirm available supply options according to order requirement.