High Quality 1 1 4 Stainless Steel Screws for Durable Fastening

Jul . 24, 2025

Company: Hebei Gardepot Technology Co., Ltd
Email: mark@gardepota.com
Address: Room 1314, Block A, Huaye Building, No. 388 Xinhua Road, Qiaoxi District, Shijiazhuang, Hebei
Product: Bi-Metal Screw

Industry Overview: Why 1 1 4 stainless steel screws Matter in Modern Manufacturing

As global manufacturing pivots towards durability, corrosion resistance, and sustainable construction, 1 1 4 stainless steel screws have emerged as a pivotal fastener solution across construction, automotive, and machinery industries. Their unique balance of tensile strength, longevity, and self-tapping efficiency—paired with industry standards like ASTM F593 and ISO 3506—makes them the preferred choice for critical connections. According to Engineering Toolbox, stainless fasteners now constitute over 24% of the global screw market, accelerating in construction and green energy sectors.

Subtypes, such as 8 x 1 1 4 stainless steel screws, 10 x 1 1 4 stainless steel screws, and m5 stainless steel screws, serve diversified technical and load-bearing requirements. As new technologies, such as bi-metal self-drilling technology, become mainstream, end-users and engineers benefit from faster installation times and improved material compatibility.

Parameter Table: Typical Configurations of 1 1 4 stainless steel screws

Spec	Thread Size	Length	Head Type	Drive Type	Material	Tensile Strength (MPa)	Corrosion Resistance
8 x 1 1/4 in	8 (4.2 mm)	1 1/4" (32 mm)	Flat/Phillips	Cross/Slotted	304/316 Stainless Steel	520-620	High
10 x 1 1/4 in	10 (4.8 mm)	1 1/4" (32 mm)	Pan/Hex	Phillips/Hex	304/410 Stainless Steel	550-850	Very High
M5	M5	32 mm	Countersunk	Pozidriv	304/316 Stainless Steel	580-870	Excellent
Self-Drilling	See Product	1 1/4" (32 mm)	Hex/Flat	Torx/Hex	Bi-Metal	Up to 1200	Superior

Technological Advancements: Comparing 1 1 4 stainless steel screws & Bi-Metal Screw

Bi-Metal Screw technology from Hebei Gardepot Technology Co., Ltd exemplifies the fusion of high-strength with corrosion resistance. Through a proprietary welding process, the screw integrates a stainless steel head (exposed to atmosphere for corrosion protection) with a hardened carbon or alloy steel tip and shank (delivering self-drilling and load transfer capacity). As a result, Bi-Metal Screws are favored for roofing, steel frame, and composite panel applications, dramatically outperforming conventional 1 1 4 stainless steel screws in drilling speed, holding power, and versatility.
Learn more: Bi-Metal Screw Features

Component 1: Stainless steel head + shank (optimal for corrosion, stress bearing)
Component 2: Hardened carbon/allow steel (self-drilling, self-tapping)
Welding: Advanced metallurgical techniques ensure unity and performance

See Bi-Metal Screw Details

Technical Trends: Parameter Evolution of 1 1 4 Stainless Steel Screws Visualization (ECharts)

Application Scenarios: Where 1 1 4 stainless steel screws & Bi-Metal Screws Excel

1 1 4 stainless steel screws are extensively deployed in environments demanding resistance to rust, structural reliability, and quick assembly. Key sectors/applications include:

Industrial construction (steel frameworks, roofing)
Automotive manufacturing (sheet metal fastening)
Outdoor decking and joinery
Marine installations (docks, hulls, enclosures)
Renewable energy equipment assembly
HVAC system installations
Stainless cabinetry and food-processing equipment

Bi-Metal Screw: Technical Metrics Visualization

Professional Q&A—Key Terms for 1 1 4 Stainless Steel Screws

1. What is the primary material for 1 1 4 stainless steel screws?: The majority use 304 or 316 stainless steel, offering a blend of tensile strength (≥ 520 MPa) and top corrosion resistance, meeting ASTM F593 & ISO 3506.
2. How does "8 x 1 1 4" or "10 x 1 1 4" relate to size specifications?: The first number (e.g., 8 or 10) is the gauge/thread major diameter in standard (imperial), while "1 1 4" means length of 1-1/4 inches (32 mm).
3. What is the difference between stainless steel screws & Bi-Metal Screws?: Bi-Metal Screws combine a corrosion-resistant stainless head with a hardened-stem & tip for self-drilling. This hybrid raises both corrosion protection and drilling efficiency.
4. What installation standards apply?: Most screws conform to ISO 14588 for mechanical fastening, while Bi-Metal variants often comply with EN 14566 and ASTM C1513 for self-drilling fastener systems.
5. What is "self-tapping" and "self-drilling" capability?: "Self-tapping" means the screw forms its own thread in materials; "self-drilling" (common in Bi-Metal Screws) adds a drill bit tip, eliminating pre-drilling.
6. What are typical applications for m5 stainless steel screws?: M5 screws (5 mm major thread) are used in light mechanical assembly, electronics, and structural mounting in corrosive/clean environments owing to their dimensional stability.
7. What is "torque capacity" and why is it important?: Torque capacity (measured in Nm) reflects the maximum force before thread/shear failure; higher in Bi-Metal due to engineered shank, ensuring safe, lasting connections.

Conclusion & Further Resources

The future of structural and technical fastening relies on innovations like 1 1 4 stainless steel screws—which satisfy the industry's need for resilience over time—and on hybrid options such as Bi-Metal Screws for even higher performance in demanding environments. Top-tier suppliers, such as Hebei Gardepot Technology Co., Ltd, ensure all products adhere to international standards and market trends, offering unmatched expertise, reliability, and customer support. For engineers, procurement specialists, and builders, specifying the right screw and supplier is essential for project longevity and safety.