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Русский ISO 14581 hexalobular countersunk screws bulk order manufacturer
XZ Fastener manufactures ISO 14581 hexalobular countersunk screws for bulk orders where buyers need flush head seating, reliable six-lobe drive engagement, stable lot control, and practical packing for production lines or distributor replenishment. These metric countersunk machine screws are selected for panels, covers, electrical housings, instruments, and equipment assemblies where the screw head should sit level with the surface. Carbon steel, alloy steel, and stainless steel options can be supplied with plain, zinc plated, black oxide, nickel plated, or passivated finishes according to order requirement. Send drawings, size lists, quantities, packing details, and inspection needs for quotation review.
Quick Specs
What Buyers Should Know Before Sourcing ISO 14581 Hexalobular Countersunk Screws
ISO 14581 screws are specified when an assembly needs a flat countersunk head and a hexalobular internal drive. The head is intended to sit flush with the mating surface, while the six-lobe recess supports stable torque transfer during repeated assembly. Before bulk ordering, buyers should confirm head angle, countersink compatibility, drive size, thread pitch, length measurement, material grade, coating thickness, packing method, and inspection level.
For drawings that reference several metric fastener standards, the DIN and ISO fastener standards guide can help purchasing teams review standard names, dimensional checks, and the information needed for a complete inquiry.
Common Purchasing Descriptions
Typical screw descriptions
- ISO 14581 countersunk screw, hexalobular drive, M3 to M12, carbon steel zinc plated
- ISO 14581 flat head six-lobe machine screws, stainless steel A2, metric coarse thread
- Hexalobular countersunk screws, black oxide, class 8.8, bulk carton packing
- Metric countersunk socket star drive screws with controlled recess depth and flush head seating
Related bulk order items
Bulk buyers often source ISO 14581 screws together with standard fasteners for production lines, maintenance kits, or distributor inventory. Related purchasing terms may include 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.
Detailed Specifications Table
| عنصر | الخيارات المتاحة | Buyer Notes |
|---|---|---|
| Product Name | ISO 14581 hexalobular countersunk screws | Use exact standard and drawing revision when producing repeat bulk orders. |
| قطر | Common metric sizes such as M3, M4, M5, M6, M8, M10, M12 | Other sizes can be reviewed according to order requirement. |
| Length | Metric lengths according to drawing, production list, or order schedule | Countersunk screw length is normally measured from the top of the head. |
| Thread | Metric coarse thread; fine thread available upon request | Confirm pitch if screws are used with tapped holes, inserts, or thin sheet components. |
| Drive | Hexalobular internal drive | Drive size should match the buyer’s tooling and assembly torque requirement. |
| Head Form | Countersunk flat head | Confirm countersink angle, seating depth, and required surface flushness. |
| مادة | Carbon steel, alloy steel, stainless steel A2 / A4 | Material should match strength, corrosion exposure, magnetic requirement, and cost target. |
| إنهاء السطح | Plain, zinc plated, black oxide, nickel plated, passivation, other coatings by request | Coating thickness should not interfere with countersunk seating or recess engagement. |
| Bulk Packing | Bulk cartons, small boxes, inner bags, barcode labels, pallets | Customer part number, label style, carton quantity, and pallet plan should be confirmed before packing. |
| Inspection | Dimension, thread, drive fit, hardness, surface appearance, packing check | Additional inspection documents can be supplied according to order requirement. |
Material and Grade Explanation
Material selection should be based on strength, corrosion exposure, installation method, and the mating component. For bulk manufacturing programs, each size should be listed clearly with material, grade, and finish so production, inspection, and packing can be controlled across the full order.
Carbon Steel and Alloy Steel
For general industrial production, carbon steel fasteners are often selected for practical cost and broad finish availability. Class 4.8 can be used for light-duty assembly, while class 8.8 or alloy steel options can be reviewed for higher strength requirements.
Stainless Steel
Stainless steel A2 is commonly used for clean indoor equipment and mild corrosion exposure. Stainless steel A4 can be considered for more demanding environments. If stainless screws are assembled into stainless threads, anti-galling practice may be required by the application.
Surface Finish Selection Guide
The finish should be selected according to corrosion exposure, visual requirement, assembly method, and storage conditions. For countersunk screws, finish build-up should be controlled because excessive coating can affect head seating, recess fit, and thread engagement.
| Finish | Typical Use | Procurement Comment |
|---|---|---|
| Zinc Plated | General equipment, panels, light industrial assemblies | Common economical option; color and corrosion requirement should be confirmed. |
| Black Oxide | Machinery, instruments, dark appearance assemblies | Often used with oil protection; suitable when the buyer needs a darker surface. |
| Nickel Plated | Clean appearance or decorative hardware applications | Available upon request when a brighter surface is required. |
| Passivated Stainless | Stainless steel screws for clean or corrosion-exposed assemblies | Confirm A2 or A4 material before finish selection. |
| Special Coating | Project-specific corrosion or friction requirement | Review options through coated fasteners when non-standard coating control is needed. |
Manufacturing and Quality Control
For bulk order manufacturing, consistent forming, thread accuracy, clean recess geometry, and reliable packing separation are important. XZ Fastener reviews item lists, drawings, or samples before production so the final screws match the buyer’s head seating, drive fit, thread, finish, and labeling needs.
Manufacturing Focus
- Cold forming or machining route selected according to size and order requirement
- Controlled countersunk head diameter, angle, and seating surface
- Hexalobular recess formed for stable drive engagement
- Thread rolling or thread processing based on material and size
- Finish process reviewed to reduce burrs, blocked recesses, and poor seating
Inspection Focus
- Dimensional checks for diameter, length, head form, countersink angle, and thread pitch
- Drive gauge fit and recess depth control
- Hardness or mechanical property review when required
- Surface appearance, coating coverage, and mixed-size prevention
- Carton labels, barcode information, pallet method, and batch information according to order requirement
Bulk projects requiring special dimensions, private labels, special drive depth, or drawing-based parts can be reviewed through XZ Fastener’s custom fasteners support.
تطبيقات
ISO 14581 hexalobular countersunk screws are used where the outside surface should remain flush and the drive needs stable engagement during assembly. They are suitable for production line use, maintenance kits, and distributor replenishment programs.
How to Get a Faster Quotation
A complete bulk order inquiry helps confirm production route, price, lead time, packing plan, and inspection scope faster. If the order includes ISO 14581 screws together with industrial bolts, nuts, washers, or other parts, send the full list so material and finish consistency can be checked together.
- Standard: ISO 14581, or attach the drawing if the countersunk head or recess is modified.
- Size list: diameter, length, thread pitch, and quantity per size.
- Material and grade: carbon steel, alloy steel, stainless steel A2 / A4, class 4.8, class 8.8, or special requirement.
- Finish: plain, zinc plated, black oxide, nickel plated, passivated stainless steel, or special coating.
- Packing: bulk carton, small box, inner bag quantity, customer label, barcode, pallet method, and mixed-item restrictions.
- Inspection: dimensional report, hardness check, coating requirement, drawing confirmation, or other documents.
For bulk order quotation support, contact XZ Fastener with your size schedule, packing needs, and delivery destination.
أسئلة متكررة
Can ISO 14581 hexalobular countersunk screws be manufactured for bulk orders?
Yes. Bulk orders can be reviewed by size, material, grade, finish, carton quantity, label format, pallet method, and inspection requirement. Repeat order plans are helpful for stable production and replenishment.
What information is needed before quoting ISO 14581 screws?
Please provide the standard, diameter, length, thread pitch, material, property class, surface finish, quantity, packaging requirement, destination, and any inspection documents needed. A drawing is recommended when the head or recess is not standard.
How is the length of a countersunk screw measured?
For countersunk screws, length is normally measured from the top of the head to the screw end. Buyers should confirm this with the drawing when replacing an existing part or changing from another screw standard.
Can bulk cartons use customer labels and part numbers?
Yes. Customer labels, item codes, barcode labels, carton marks, bag quantities, and pallet packing can be discussed before production. Buyers should share the required label content before order confirmation.
Which finishes are commonly selected for bulk order production?
Zinc plated, black oxide, plain, nickel plated, and passivated stainless steel finishes are common options. The suitable finish depends on material, storage conditions, corrosion exposure, and market requirement.
Can ISO 14581 screws be supplied together with other fasteners?
Yes. XZ Fastener can review mixed fastener lists including screws, nuts, washers, bolts, and custom parts. Supplying related items together can help align material, finish, labeling, and shipment packing.
Send Your Bulk Order Requirement
For ISO 14581 hexalobular countersunk screws, send your size list, finish, quantity, packaging method, inspection requirements, drawing if available, carton label needs, and delivery destination. XZ Fastener will review the specification and respond with practical supply options according to order requirement.