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Русский DIN 7984 low head socket cap screws wholesale supplier
XZ Fastener supplies DIN 7984 low head socket cap screws for distributors, OEM buyers, equipment builders, and maintenance stock programs that need compact metric socket screws in repeat quantities. These screws are used when standard socket head cap screws are too tall for the assembly. Wholesale orders can be discussed by size list, material, grade, finish, packaging, and inspection requirements. Buyers can also review related industrial screws and complete fastener products when preparing mixed stock, project supply, or OEM procurement lists.
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Quick Specs
| قياسي | DIN 7984 low head socket head cap screws. Drawing-controlled dimensions can be reviewed when clearance, replacement fit, or customer approval is critical. |
|---|---|
| Strength | Common carbon steel and alloy steel strength classes such as 8.8, 10.9, or 12.9 according to order requirement; stainless steel A2-70 or A4-70 available upon request. |
| مادة | Carbon steel, alloy steel, stainless steel 304/A2, stainless steel 316/A4, or specified material according to application requirement. |
| Finish | Plain, black oxide, zinc plated, nickel plated, zinc flake, passivated stainless steel, or other approved finish. |
| تطبيق | Low-clearance machinery, automation equipment, tooling, molds, rail systems, instruments, fixtures, compact frames, and OEM stock programs. |
What Buyers Should Know Before Sourcing DIN 7984 Low Head Socket Cap Screws
DIN 7984 low head socket cap screws solve a specific problem: limited head clearance. They are often selected when a normal socket head cap screw interferes with covers, guide rails, sliding parts, or compact machinery spaces.
For wholesale buyers, the challenge is consistency across repeat orders. Head height, socket depth, thread pitch, finish shade, and packing labels should stay controlled from batch to batch. If the order includes several DIN or ISO items, XZ Fastener’s DIN and ISO fastener standards guide can help buyers define standard references, grades, and finishes more clearly.
Common Purchasing Descriptions
Clear purchasing descriptions help avoid mixed stock, wrong finish, and customer returns. Each size, material, grade, and finish should be listed as a separate line item.
| Incomplete Description | Better Wholesale Description |
|---|---|
| M6 low head screws | DIN 7984 low head socket cap screw, M6 x 20, Class 10.9, black oxide, small box or bulk carton packing |
| Stainless low head socket screw | DIN 7984 low head socket cap screw, M5 x 16, A2-70 stainless steel, passivated, labeled by size and batch |
| Zinc plated low head screw | DIN 7984, M8 x 25, carbon steel Class 10.9, zinc plated, hex socket drive, inspection report upon request |
| Special low head fastener | Low head socket cap screw made to drawing, specified material, finish, tolerance, sample approval, and buyer label |
Many distributors source DIN 7984 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. These products should be kept separate in quotation, packing, and warehouse labeling because they serve different fastening needs.
Detailed Specifications Table
| Specification Item | Typical Wholesale Requirement | Buyer Checkpoint |
|---|---|---|
| Product type | Low head socket cap screw | Confirm DIN 7984 or drawing-controlled low head requirement. |
| Thread system | Metric thread, commonly coarse pitch | State fine pitch clearly if used for machinery repair or OEM replacement. |
| Common size range | M3, M4, M5, M6, M8, M10, M12, and larger sizes upon request | Send a size list with quantity for each diameter and length. |
| Head design | Reduced-height cylindrical socket head | Check head height, head diameter, and clearance against the application. |
| Socket drive | Internal hex socket | Socket depth is lower than standard socket head cap screws, so tool engagement should be checked. |
| Strength class | 8.8, 10.9, 12.9, A2-70, A4-70, or order-specific grade | Match strength to application demand and customer requirement. |
| Surface finish | Black oxide, zinc plated, zinc flake, nickel plated, plain, or stainless passivation | Confirm finish according to corrosion exposure, appearance, and thread fit. |
| Wholesale packing | Bulk carton, small box, plastic bag, barcode label, buyer label, or pallet | Define pieces per box, carton weight, label format, and pallet requirement. |
For buyers planning broader stock programs, the standard fasteners page provides a wider view of screws, bolts, nuts, washers, anchors, and threaded components available for industrial purchasing.
Material and Grade Explanation
Carbon Steel and Alloy Steel
Carbon steel and alloy steel DIN 7984 low head socket cap screws are commonly used in mechanical assemblies where compact head height is required. Strength classes such as 8.8, 10.9, or 12.9 may be discussed according to order requirement and working conditions.
For loaded or vibration-exposed assemblies, compare the screw requirement with related high-strength fasteners. The low head design should be reviewed where tightening torque, fatigue, or head bearing area is important.
Stainless Steel
A2 stainless steel is suitable for many indoor and mild outdoor applications. A4 stainless steel is more suitable for coastal, marine, chemical, or high-humidity environments. Stainless DIN 7984 screws are often selected where corrosion resistance and compact appearance are both required.
Stainless steel threads can gall during installation. Buyers should confirm mating material, lubrication, torque practice, and tool speed when stainless screws are used in repeated assembly.
Surface Finish Selection Guide
Surface finish affects corrosion resistance, appearance, thread fit, storage stability, and customer acceptance. Wholesale buyers should select finish according to the target market and storage conditions.
| Finish | Suitable Wholesale Use | Buyer Note |
|---|---|---|
| أكسيد أسود | Machinery, tooling, fixtures, indoor equipment | Clean dark appearance; limited corrosion resistance unless protected by oil or controlled storage. |
| Zinc plated | General industrial stock and light corrosion protection | Confirm color, coating thickness, and hydrogen embrittlement control where applicable. |
| Zinc flake | Outdoor equipment and controlled coating thickness applications | Useful where corrosion resistance and thread fit must be balanced. |
| Nickel plated | Appearance-focused equipment and selected hardware assemblies | Check application environment and mating material before approval. |
| Stainless passivation | A2 or A4 stainless steel low head screws | Recommended when corrosion resistance and clean surface condition are important. |
For outdoor or corrosion-sensitive projects, buyers can review XZ Fastener’s coated fasteners before confirming the final finish.
Manufacturing and Quality Control
Wholesale supply requires stable repeatability. DIN 7984 low head socket cap screws should be controlled through material verification, forming, socket shaping, threading, heat treatment where required, surface finishing, inspection, and packing.
Material grade, wire or bar diameter, heat number, and batch separation should be confirmed before forming and threading.
Head height, head diameter, socket size, socket depth, chamfer, and tool engagement should be checked against the order requirement.
Carton labels, quantity, net weight, gross weight, pallet marks, and batch information should match the packing list and invoice.
For special head height, non-standard thread length, custom material, or private-label packing, XZ Fastener can discuss custom fasteners based on drawings, samples, or technical descriptions.
تطبيقات
DIN 7984 low head socket cap screws are useful in compact assemblies where ordinary socket head cap screws create interference. For stock programs, buyers should separate general-purpose use from load-sensitive use.
| Application Area | Why DIN 7984 Is Used | Selection Reminder |
|---|---|---|
| Machinery and automation equipment | Low head height helps avoid interference with moving parts or covers | Check tightening method and vibration conditions. |
| Molds, fixtures, and tooling | Compact head allows fastening in recessed or limited-clearance positions | Confirm socket engagement and service access. |
| Rail parts and guide systems | Reduced protrusion helps maintain clearance along sliding paths | Review load and fatigue requirement before use. |
| Electrical and instrument housings | Clean head profile suits compact enclosures | Choose finish according to indoor or outdoor exposure. |
| Distributor and OEM stock | Common metric sizes support repeat customer demand | Use clear labels by size, finish, material, and batch. |
If the order requires modified dimensions, private-label packing, or drawing-based production, the customized service process can help define requirements before manufacturing.
How to Get a Faster Quotation
A complete inquiry helps the supplier quote accurately and reduce follow-up time. Send a structured size list instead of a short product name.
- Confirm standard: DIN 7984 or drawing-controlled low head socket cap screw.
- Send size list: diameter, length, thread pitch, and quantity for each line.
- State material and grade: carbon steel, alloy steel, Class 8.8, 10.9, 12.9, A2 stainless, A4 stainless, or specified material.
- Define finish: black oxide, zinc plated, zinc flake, nickel plated, passivated stainless, or other coating.
- Confirm packaging: bulk carton, small box, plastic bag, buyer label, barcode, pallet, or distributor packing.
- List inspection requirements: dimensional report, material certificate, coating report, packing list details, or Certificate of Origin.
- Share destination country or port if shipment support is required.
For current quotation support, contact XZ Fastener with your size list, finish, quantity, packaging, and inspection requirements.
أسئلة متكررة
What is DIN 7984 used for?
DIN 7984 low head socket cap screws are used where a standard socket head cap screw is too tall. Common applications include machinery, fixtures, molds, rail systems, compact equipment, and instrument housings.
Can DIN 7984 screws replace DIN 912 socket head cap screws?
Not always. DIN 7984 has a lower head and usually reduced socket depth compared with standard socket head cap screws. Replacement should be checked against clearance, tightening torque, head bearing area, and joint load.
What materials can be supplied for DIN 7984 low head socket cap screws?
Common material options include carbon steel, alloy steel, stainless steel A2, and stainless steel A4. Other materials can be discussed according to drawing, application, and order requirement.
Which finishes are common for wholesale DIN 7984 screws?
Black oxide, zinc plated, zinc flake, nickel plated, plain finish, and stainless steel passivation are common options. The final finish should match the working environment, storage condition, and customer requirement.
What packing is suitable for distributor stock?
Common packing options include small boxes, bulk cartons, plastic bags, barcode labels, buyer labels, and palletized packing. Buyers should define pieces per box, carton weight, label content, and pallet requirements before production.
What information is needed for an accurate quotation?
Send the standard, size list, thread pitch, material, grade, finish, quantity, packing method, destination country, and inspection requirements. A drawing is recommended if clearance or head dimensions are critical.
Send Your DIN 7984 Wholesale Inquiry
For an accurate quotation, send your size list, finish, quantity, packaging, and inspection requirements. If the screw is used in a limited-clearance or load-sensitive assembly, include the drawing or application note with the inquiry.
- Size list: diameter, length, thread pitch, and quantity
- Material and grade: carbon steel, alloy steel, Class 8.8, 10.9, 12.9, A2, A4, or specified material
- Finish: black oxide, zinc plated, zinc flake, nickel plated, passivated stainless, or other requirement
- Packaging: small box, bulk carton, bag, buyer label, barcode label, pallet, or distributor packing
- Inspection: dimensional report, material certificate, coating report, Certificate of Origin, or project documents