Flat Head Self Sealing Screws, M2-M6 O-Ring Waterproof Sealing Machine Screws OEM Custom Factory
Main Product Introduction
Our flat head sealing screws, also known as countersunk self sealing machine screws, adopt integrated silicone o-ring design under flat countersunk head to form 360° airtight, waterproof, dust-proof and oil-tight seal after tightening. No extra separate gaskets or sealant needed, greatly cutting assembly cost and avoiding leakage risk caused by loose washers. We produce full series o-ring sealing screws including flat head sealing screw hexagon, tamper proof countersunk sealing screw, socket cap head sealing screws with silicone orin and all metric sizes m2 sealing screw, m3 sealing screws, m4 sealing screw, m5 sealing screw, sealing screw m6.
Made of stainless steel or carbon steel with multiple surface finishes, our waterproof sealing screws fit tightly into countersunk holes for a completely flush, snag-free surface without protruding heads. The built-in o ring self sealing screw for plastic performs stable under long-term vibration, moisture and corrosive environments, widely recognized as reliable screw sealing solutions by global manufacturers.
Core Product Advantages
- 1 Integrated O-Ring Sealing Structure: Pre-installed silicone/EPDM/Viton o-ring delivers zero leakage, fully meet IP65/IP67 waterproof standard, ideal water sealing screws for outdoor cabinets.
- 2 Flush Flat Countersunk Design: Flat head sinks completely into workpiece, no protruding edges to scratch wiring or moving parts, perfect for thin panel, PCB and plastic shell assembly.
- 3 Full Metric Size Coverage: Standard stock m2 sealing screw, m3 sealing screws, m4 sealing screw, m5 sealing screw, sealing screw m6; custom non-standard thread length & pitch supported.
- 4 Diversified Customization: As professional oem sealing screws & custom sealing screws factory, we supply tamper-proof flat head sealing screws, hexagon sealing screw, different drive types (Phillips, torx, hex socket).
- 5 Multi-Material & Surface Options: 304/316 stainless steel, galvanized carbon steel, black oxide; customized silicone ring hardness for high/low temp, acid & alkali resistance.
- 6 Vibration & Corrosion Resistant: Fixed o-ring won’t slip during long equipment operation, stainless steel sealing screw prevents rust in coastal, humid and chemical workshops.
Complete Specifications
- Thread Standard: Metric m2, m3, m4, m5, m6 self-sealing screws, fine & coarse thread optional
- Head Type: Flat countersunk head, flat hexagon sealing screw, tamper proof countersunk sealing screw
- Drive Type: Phillips, torx pin, inner hex socket
- Seal Accessory: Silicone o-ring, EPDM ring, viton o-ring (o-ring sealing screws)
- Raw Material: 304 / 316 stainless steel, carbon steel
- Surface Treatment: Zinc plating, black oxide, nickel plating, passivation
- Custom Service: OEM sealing screws, special length, customized o-ring size, logo laser marking
- Compliance: RoHS, REACH, ISO certified high quality sealing screws
Wide Application Scenarios
Our flat head self sealing machine screws are extensively applied in consumer electronics, electrical terminal blocks, communication cabinets, new energy equipment, outdoor monitoring housings, plastic instrument shells, automation machinery and security devices. The o ring self sealing screw for plastic solves moisture and dust penetration issues of thin plastic enclosures; tamper-proof countersunk sealing screw is popular for public security & lock equipment.
Why Choose Our China Sealing Screws Factory
YuHuang are professional sealing screws manufacturer, sealing screws supplier & sealing screw factory in China, with independent sealing screws factories supporting bulk wholesale and small trial orders. As trusted sealing screw supplier in china & sealing screw wholesale in china, we have complete production lines for custom sealing screws and oem sealing screws, exporting products to global markets as reliable sealing screws exporters & sealing screws exporter.
- 1 30+ years fastener manufacturing experience, full in-house cold heading, threading and o-ring assembly workshops
- 2 Strict full inspection: Salt spray test, torsion test, sealing leakage test for all high quality sealing screws before shipment
- 3 Flexible MOQ: Standard m2/m3/m4/m5/m6 sealing screws in stock with low minimum; custom tamper-proof sealing screws acceptable small batches
- 4 Fast lead time: 3 days for free samples, 7-10 days for mass production of china sealing screws
- 5 One-stop custom service: Adjust head shape, thread, o-ring material and surface finish per your drawings
Frequently Asked Questions
Q1: Do you supply tamper-proof flat head sealing screws?
A1: Yes, we produce tamper proof countersunk sealing screw with torx pin drive, suitable anti-theft equipment installation.
Q2: Are your o ring self sealing screw for plastic available in M2-M6 metric sizes?
A2: Standard stock includes m2 sealing screw, m3 sealing screws, m4 sealing screw, m5 sealing screw, sealing screw m6, custom sizes available.
Q3: Can I order OEM custom sealing screws with special silicone o-ring?
A3: Absolutely, as professional oem sealing screws factory, we customize o-ring material, thickness and hardness per working temperature & medium.
Q4: Are you a sealing screw factory in China with export qualification?
A4: We are direct sealing screws manufacturer & sealing screws supplier, certified sealing screws exporters supplying worldwide clients with stable bulk supply.
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