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M3 Stainless Steel 316 Screw
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Name: M3 Stainless Steel 316 Screw
Standard: DIN933
Material: SS316
Size: M3
Lenght: 25 mm
Surface: Natural color
Standard: DIN933
Material: SS316
Size: M3
Lenght: 25 mm
Surface: Natural color
Quantity
M3 Stainless Steel 316 Screw strictly follows the DIN933 hex-head standard and is manufactured from high-corrosion-grade SS316, remaining bright and untarnished even in highly corrosive environments such as marine, chemical, and medical settings. At 25 mm long, it universally fits most precision equipment. Its natural, uncoated finish eliminates the risk of coating flaking, giving assemblies a clean, professional appearance. The screw delivers high torque without stripping, allowing a single tightening for long-term reliability.
Our M3 Stainless Steel 316 Screw is ideal for the following application scenarios:
1. Highly corrosive environments
• Marine vessels: deck railings, seawater desalination equipment, shipboard pumps and valves—SS316 with Mo ≥ 2.5 % resists chloride pitting; using M3 Stainless Steel 316 Screw significantly extends maintenance intervals.
• Marine vessels: deck railings, seawater desalination equipment, shipboard pumps and valves—SS316 with Mo ≥ 2.5 % resists chloride pitting; using M3 Stainless Steel 316 Screw significantly extends maintenance intervals.
• Chemical installations: acid & alkali storage tanks, chlor-alkali electrolyzers—316 shows a corrosion rate < 0.025 mm/a in 5 % FeCl₃ at room temperature; in these conditions, M3 Stainless Steel 316 Screw is the fastener of choice.
• Outdoor construction: coastal railings, rooftop PV brackets—the natural, uncoated finish eliminates later upkeep; once M3 Stainless Steel 316 Screw is installed, maintenance is virtually zero.
2. Hygienic/clean-room settings
• Food & pharmaceutical: filling-machine frames, CIP cleaning lines—316L grade meets FDA 21 CFR 177.1550 and can contact food directly; M3 Stainless Steel 316 Screw satisfies clean-room requirements.
• Medical instruments: operating tables, dialysis equipment—withstanding 121 °C steam sterilization, non-rusting and non-magnetic; selecting M3 Stainless Steel 316 Screw prevents magnetic particle contamination.
3. Precision electronics & instrumentation
• Semiconductor equipment: chamber covers, gas lines—the M3×25 size fits compact spaces; non-magnetic 316 reduces particle contamination; M3 Stainless Steel 316 Screw remains stable during long-term clean-room operation.
• Semiconductor equipment: chamber covers, gas lines—the M3×25 size fits compact spaces; non-magnetic 316 reduces particle contamination; M3 Stainless Steel 316 Screw remains stable during long-term clean-room operation.
• Optical instruments: laser mounts—threads mated to 6g/6H keep the optical axis stable; the precision thread of M3 Stainless Steel 316 Screw ensures imaging quality.
4. New-energy & high-end machinery
• Hydrogen systems: electrolyzer pole frames, hydrogen-storage cylinder valve groups—316 remains potential-stable in 80 °C alkaline electrolyte; M3 Stainless Steel 316 Screw shows no hydrogen embrittlement under high-pressure hydrogen.
• Hydrogen systems: electrolyzer pole frames, hydrogen-storage cylinder valve groups—316 remains potential-stable in 80 °C alkaline electrolyte; M3 Stainless Steel 316 Screw shows no hydrogen embrittlement under high-pressure hydrogen.
• Drones/robotics: carbon-fiber skeleton connections—the 25 mm length spans a 3 mm plate + 10 mm standoff + nut with adequate strength; M3 Stainless Steel 316 Screw balances light weight with corrosion resistance.
Usage tips
• For long-term vibration, pair M3 Stainless Steel 316 Screw with a 316 all-metal lock nut or Loctite 243 medium-strength threadlocker.
• Avoid direct contact with aluminum to prevent galvanic corrosion; place a 316 washer or insulating coating between M3 Stainless Steel 316 Screw and aluminum parts.
• Tightening torque: 0.8 N·m dry, 0.6 N·m lubricated—this prevents thread galling of M3 Stainless Steel 316 Screw.
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