1/2-13 Flat Head Cap Screw & 1/2-13 Socket Head Cap Screw | Buy
1/2-13 Flat Head Cap Screw & 1/2-13 Socket Head Cap Screw โ Premium Industrial Fasteners for Demanding Applications
๐บ๐ธ ๐ช๐บ Engineered for precision, reliability, and cost-efficiency โ solve your fastener failures, reduce total cost of ownership, and get factory-direct pricing with full traceability.
โ ๏ธ The Real Cost of Substandard Fasteners โ Are You Paying More Than You Think?
๐ด Hidden Downtime Costs โ A single 1 2 13 socket head cap screw failure in a critical assembly line can cause $12,000+ per hour of unplanned stoppage. Yet most buyers focus only on unit price.
๐ด Inconsistent Quality โ Imported 1 2 13 flat head cap screws from low-cost sources often fail torque tests. 37% of rejected batches in 2024 were due to thread pitch deviations and improper heat treatment.
๐ด Supply Chain Fragmentation โ Sourcing from multiple suppliers for different specs increases administrative overhead by 22% and extends lead times by 3โ5 weeks.
๐ด Compliance Risks โ Without proper certifications (ISO 898-1, ASTM A574, RoHS), your products may face import rejections or liability claims. In 2025, 14% of US fastener imports were flagged for non-compliance.
๐ด High Total Cost of Ownership โ Cheap fasteners often require 3x more frequent replacement, increasing labor, inspection, and logistics costs over the product lifecycle.
๐ด Logistical Delays โ Overseas suppliers with poor inventory management cause 4โ6 week delays on average, disrupting your production schedules and customer commitments.
โ These are not hypothetical โ they are the daily reality for procurement and operations teams across the US and Europe. But there is a better way.
๐ฉ Boen Fasteners โ Your Trusted Source for 1 2 13 Flat Head Cap Screw & 1 2 13 Socket Head Cap Screw
At Handan Boen Fastener Manufacturing Co., Ltd. (Est. 2010), we deliver Grade 8.8 / 10.9 / 12.9 alloy steel fasteners that meet or exceed ASTM A574, ISO 898-1, and DIN 912 standards. Our 1 2 13 flat head cap screw and 1 2 13 socket head cap screw are engineered for high-stress environments where failure is not an option.
Factory-Direct Power
No middlemen. You get 15โ25% lower pricing compared to distributors, with full control over raw material sourcing (SAE 4140, 42CrMo4, 304SS, 316SS).
Quality Assurance
Every batch undergoes 100% dimensional inspection, hardness testing (HRC 32โ39), and torque validation. Certificates of Conformance included with every shipment.
High-Speed Delivery
Standard lead time: 12โ18 days for stock sizes. Express service available for urgent orders. We ship to 30+ countries via air, sea, or rail.
๐ Technical Specifications โ 1 2 13 Flat Head Cap Screw & 1 2 13 Socket Head Cap Screw
| Parameter | 1 2 13 Flat Head Cap Screw | 1 2 13 Socket Head Cap Screw |
|---|---|---|
| Thread Size | 1/2โณ โ 13 UNC | 1/2โณ โ 13 UNC |
| Head Type | Flat Head (countersunk 82ยฐ) | Socket Head (hex drive) |
| Grade / Material | Grade 8.8 / 10.9 / 12.9 alloy steel, 304SS, 316SS | Grade 8.8 / 10.9 / 12.9 alloy steel, 304SS, 316SS |
| Hardness (HRC) | 32โ39 (Grade 12.9) | 32โ39 (Grade 12.9) |
| Tensile Strength (min) | 1220 MPa (Grade 12.9) | 1220 MPa (Grade 12.9) |
| Standards | ASTM A574, ISO 898-1, DIN 912, ANSI B18.3 | ASTM A574, ISO 898-1, DIN 912, ANSI B18.3 |
| Finish Options | Black oxide, zinc plated, hot-dip galvanized, plain | Black oxide, zinc plated, hot-dip galvanized, plain |
| Length Range | 3/4โณ โ 6โณ (custom lengths available) | 3/4โณ โ 6โณ (custom lengths available) |
| Packaging | Bulk, box, or custom retail-ready packaging | Bulk, box, or custom retail-ready packaging |
* All specifications are per ASTM A574 and ISO 898-1 standards. Custom grades and materials available upon request.
Agricultural Machinery
1 2 13 flat head cap screws are used in tractor attachments, harvesters, and irrigation systems where a flush surface is required to avoid snagging. Our zinc-plated Grade 10.9 variants provide excellent corrosion resistance in humid environments.
Automotive & Heavy Truck
1 2 13 socket head cap screws are critical for engine mounts, chassis components, and hydraulic systems. Our Grade 12.9 alloy steel fasteners deliver the high clamping force needed for safety-critical joints.
Construction & Structural
From steel beam connections to concrete formwork, our 1 2 13 flat head cap screw provides a clean, flush finish. Hot-dip galvanized option available for outdoor and marine applications.
Industrial Equipment & Machinery
Our 1 2 13 socket head cap screw is widely used in presses, pumps, compressors, and robotics where high preload and fatigue resistance are essential.
โ Frequently Asked Questions About 1 2 13 Flat Head & Socket Head Cap Screws
The flat head version has a countersunk 82ยฐ head that sits flush with the surface, ideal for smooth finishes. The socket head version has a cylindrical head with a hex drive, offering higher torque capacity and easier access in tight spaces.
We offer alloy steel (Grade 8.8, 10.9, 12.9), stainless steel (304, 316), and custom materials. Alloy steel grades are heat-treated and quenched for maximum strength.
For stock sizes (1/2โณ-13 x 1โณ to 4โณ), MOQ is 1,000 pieces. For custom lengths or special finishes, MOQ starts at 5,000 pieces. We also offer sample orders for qualification.
Yes. Every shipment includes a Certificate of Conformance (ISO 898-1, ASTM A574). Mill test reports (MTR) and third-party inspection reports are available upon request.
Standard lead time is 12โ18 working days for stock items. Custom orders require 20โ25 days. Express air freight can be arranged within 7โ10 days.
We follow a 3-stage quality check: incoming raw material testing, in-process dimensional inspection, and final batch validation (hardness, tensile, torque). AQL 1.0 or 0.65 is standard.
Absolutely. We offer OEM/ODM packaging with your logo, barcode, and product information. Retail-ready boxes, polybags, and bulk cartons are all available.
We accept T/T (30% deposit, 70% before shipment), L/C at sight, and for established clients, net 30 or net 60 terms. PayPal and credit cards are available for sample orders.
โญ What Our Customers Say About 1 2 13 Flat Head & Socket Head Cap Screws
โWe tested 1 2 13 socket head cap screws from three suppliers. Boenโs tensile strength was 15% higher than the closest competitor. Now they are our sole source. Great service and fast shipping.โ
โThe 1 2 13 flat head cap screws are perfect for our cabinet assembly line. Zero defects in 12,000 units โ thatโs the kind of reliability we need. Merci, Boen!โ
โWe use Boenโs 1 2 13 socket head cap screws in our robotic presses. The repeatability of clamping force is outstanding. Their technical documentation is thorough โ exactly what we need for ISO 9001 audits.โ
โWe switched to Boen for 1 2 13 flat head cap screws and saved 22% on total cost including freight. The quality is consistent and the team is very responsive. Highly recommended.โ
โBoenโs factory-direct model gives us a competitive edge in the Latin American market. Their 1 2 13 socket head cap screws meet all our ASTM requirements. The logistics team is very professional.โ
โI needed a custom length 1 2 13 flat head cap screw for a specialized jig. Boen delivered in 10 days with perfect threading. Their engineering support is top-notch.โ
James Chen is a Senior Fastener Engineer at Handan Boen Fastener Manufacturing Co., Ltd. with over 14 years of experience in the design, testing, and global supply of industrial fasteners. He has personally overseen more than 1,200 export shipments to 30+ countries and is a certified ISO 9001 internal auditor. James writes regularly on fastener standards, material science, and supply chain optimization for B2B buyers.
๐ Ready to Secure Your Supply of 1 2 13 Flat Head & Socket Head Cap Screws?
Get factory-direct pricing, full traceability, and delivery in 12โ18 days. Limited-time: Free sample pack for qualified buyers
โ No middlemen โ ISO 9001 certified โ 30+ countries served โ Risk-free quality guarantee
Handan Boen Fastener Manufacturing Co., Ltd. | Hanguang Industrial Park, Yongnian District, Handan City, Hebei Province, China
๐ Trusted by Industry Leaders Across 30+ Countries
๐ข Our Products Are Used By (partial list):
๐ Certifications & Compliance:
โWe switched to Boenโs 1 2 13 socket head cap screws for our assembly line. Torque consistency improved by 23% and we eliminated batch rejections. Their quality system is world-class.โ
โ David M., Procurement Manager, Illinois, USAโThe 1 2 13 flat head cap screws from Boen fit perfectly in our agricultural equipment. Lead time was 14 days, and the pricing was 18% below our previous supplier. Highly recommend.โ
โ Hans V., Operations Director, Bavaria, Germany