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FASTENER TECHNICAL SERIES
2026-10-22
Executive Summary
| The Ruspert composite washer drilling screw is a premium self-drilling screw yakagadzirirwa simbi-ku-simbi uye simbi-kune-timber kusungirira munzvimbo dzekunze dzine hukasha. Nekubatanidza kesi-yakaomeswa simbi screw body, dhiri poindi inoita nhanho imwe kuchera nekubaya, uye a bonded EPDM composite sealing washer, iyi screw mhuri yakavakirwa kwenguva refu-yehupenyu anti-ngura kuita. Yakachengetedzwa ne Ruspert ceramic-organic anti-rust coating, screws kuendesa kumusoro 1,000+ maawa emunyu wekupfapfaidza kuramba isina ngura tsvuku - zvinodarika zvakajairwa magetsi emagetsi. Ichi chinyorwa chinotsanangura iyo screw chimiro, iyo corrosion yekudzivirira tekinoroji kuseri kwejasi, yakasimbiswa anti-ngura bvunzo data, uye inoshanda sarudzo uye yekumisikidza kutungamira kwematenga edenga, kuvhara, uye mapurojekiti ekumisikidza zuva. |
1. Chii chinonzi Composite Washer Drilling Screw?
A composite washer drilling screw (inonziwo self-drilling screw ine bonded sealing washer) chibatiso chine shinda chinoita maoparesheni matatu mukutyaira kumwe chete: kuchera, kugadzira shinda, uye kuisa chisimbiso. Kusiyana neakajairika self-tapping screws, iyo yakasanganiswa yekudhiraivha inobvisa kudiwa kwekutanga kudhirowa.
Iyo EPDM rabha washer yakanyungudika - yakasungirirwa kune galvanized simbi inotsigira kepisi - inomisikidza pamusoro pepaneru kuti igadzire isina kusimba, isingabvire chisimbiso.
| Mumashoko akajeka: siruu imwe inotsiva chibooreso, siruu yekutapa, uye yakasarudzika rabha washer - uye inochengeta ngura nemvura yekunaya kwemakore. |
Mhuri yechigadzirwa inowanzovhara:
- Hex washer musoro (HWH) masiruu ekuchera- chiyero cheindasitiri yedenga
- Countersunk (flat head) drilling screws- yezvikumbiro zvekupedza
- Pani / bhatani musoro kuchera screws- yepepa resimbi uye ductwork
2.Anatomy of the Screw
| Chikamu | Material & Design | Basa |
| Musoro | Hex washer musoro une serrated flange (kana countersunk) | High torque kutapurirana; flange inogovera iyo clamping mutoro |
| Composite washer | EPDM rabha yakasvibiswa kune zinc-plated / 304 Stainless simbi cap | Weather-tight seal; inobata vibration; UV uye ozone inoshingirira, −40 °C kusvika +120 °C sevhisi |
| Shank & thread | Case-yakaomeswa kabhoni simbi (C1022A), yakakungurutswa shinda | High thread-kugadzira simba; shinda dzakakungurutswa dzinowedzera kuneta kuramba |
| Drill point | Chibooreso chakaomeswa, HRC 55–60 | Inodhirowa nesimbi kusvika 6.0 mm mukobvu mukuvhiya kumwe chete |
| Coating | Ruspert ceramic-organic composite coating | Hupenyu hurefu hwekudzivirira ngura uye anti-corrosion barriers |
Product standards: GB/T 15856.4 / DIN 7504K (hex flange musoro self-drilling screws); shinda pa GB/T 5280 / ISO 1478.
3.Ruspert Coating: Ceramic-Organic Anti-Corrosion Technology
- Barrier protection- maflakes esimbi akaita seplate anogadzira nzira ine tortuous inovharisa mvura, oxygen, uye chloride ions kuti isasvike pasi pesimbi.
- Kudzivirirwa kwechibairo- iyo zinc chikamu chinodya zviri nani, ichipa galvanic (cathodic) chengetedzo kunyangwe iyo yekuputira ichikweshwa panzvimbo yekuboora kana shinda crests.
- Hapana hydrogen embrittlement njodzi- kusiyana ne electro-plating, Ruspert isiri-electrolytic dip-spin process, saka hapana hydrogen kuchaja yeakaomeswa screw body.
- Dimensional kugadzikana- iyo yekupfeka inovaka chete 6-12 µm yeukobvu, saka shinda dzinochengeta geji radzo uye dzinoungana zvakanaka pasina kudzvanya zvakare.
Kuenzaniswa neyakajairwa screw kupera, Ruspert anogara pamusoro petier yekudzivirira-inoshanda corrosion dziviriro:
| Finish | Yakajairika Salt Spray kuenda kuRed Rust (ISO 9227 / ASTM B117) | Relative Cost | Notes |
| Ichena / yebhuruu zinc plating | 24–72 h | Low | Indoor kana yakaoma mukati mekushandisa chete |
| Yellow zinc plating | 72–120 h | Low–Medium | Chiedza chekunze kuratidzwa |
| Mechanical galvanizing | 240–400 h | Pakati | Yakanakira zvisungo zvemahombekombe |
| Dacromet / zinc flake (hwaro) | 480–720 h | Pakati-Pamusoro | Chrome-yemahara sarudzo dziripo |
| Ruspert 500 | 500 h, hapana tsvuku tsvuku | Pakati-Pamusoro | Standard outdoor roofing giredhi |
4. Mhedziso
Zvekunze screw fasting uko ngura muvengi, the Ruspert composite washer drilling screw inopa musanganiswa usingawanzo: drill-point nyore, EPDM sealing, uye ceramic-organic anti-corrosion tekinoroji yakatarwa kusvika 1,000+ maawa emunyu wekupfapfaidza kutsungirira. Iyo inowedzera hupenyu hwesevhisi yejoint yakasungirirwa kuti ienderane - uye kazhinji inobuda kunze - iyo denga remba kana yekuvharira sisitimu pachayo, yekucheka magadzirirwo ekugadzirisa uye yakazara mutengo wevaridzi.
Zvetekinoroji madheti, mishumo yemunyu yekupfapfaidza bvunzo, uye tsika screw yakatarwa, bata timu yedu yekuburitsa kunze.
