Pabrik sekrup soket baja tahan karat A4-80
XZ Fastener manufactures A4-80 stainless steel socket screws for buyers who need higher-strength stainless fasteners with clean internal hex drive control. These screws are commonly specified as DIN 912 / ISO 4762 socket head cap screws, Allen head screws, or drawing-based socket fasteners according to order requirement. A4-80 is often selected for marine equipment, chemical machinery, outdoor assemblies, and stainless structures where A4 corrosion resistance and higher strength are both important. Buyers can source sekrup tutup kepala soket baja tahan karat with finish, packing, and inspection details confirmed before production.
Standar
DIN 912 / ISO 4762; custom drawings available
Kekuatan
A4-80; A4-70 dan A2-70 tersedia berdasarkan permintaan
Bahan
A4 / 316-family austenitic stainless steel
Selesai
Biasa, dipasivasi, diasamkan dan dipasivasi, dilumasi
Aplikasi
Mesin kelautan, peralatan kimia, rakitan presisi
Yang Harus Diketahui Pembeli Sebelum Membeli Sekrup Soket Stainless Steel A4-80
A4-80 socket screws combine stainless corrosion resistance with a higher property class than A4-70. Before sourcing, buyers should confirm whether the order requires DIN 912 / ISO 4762 socket head cap screws, low head socket screws, button head socket screws, countersunk socket screws, or a drawing-based design.
Confirm head style and drive
Socket screws are not the same as external hex bolts. Internal hex drive depth, socket size, head diameter, head height, and thread length should match the assembly tool and clearance space. Related baut tutup soket kepala Allen metrik can be reviewed when the buyer needs standard DIN 912 items.
Check A4-80 availability by size
A4-80 can be more demanding than A4-70, especially in larger diameters or special lengths. Size, thread pitch, mechanical requirement, and inspection documents should be confirmed before the factory commits production.
Plan against thread galling
High-strength stainless socket screws can gall during fast assembly or dry tightening. Lubrication, anti-seize compound, mating nut material, and tightening method should be reviewed for repeated assembly or high clamp load applications.
Deskripsi Pembelian Umum
Clear purchasing descriptions help avoid wrong head type, wrong property class, or mixed stainless grades. Common buyer wording includes:
- A4-80 stainless steel socket screws DIN 912, M8 x 30, full thread, passivated finish.
- Sekrup tutup kepala soket tahan karat ISO 4762 A4-80, ulir kasar metrik, hasil akhir polos.
- Sekrup kepala Allen baja tahan karat 316, A4-80, dengan sertifikat uji material tersedia berdasarkan permintaan.
- Sekrup tutup soket A4-80 dengan ring datar tahan karat dan ring kunci pegas yang serasi.
- Special socket screws according to drawing, A4 stainless steel, higher-strength property class, controlled head dimensions.
- Separate carbon steel items such as Grade 8.8 carbon steel hex bolts, DIN 933 full thread hex bolts, zinc plated DIN 933 bolts, black oxide DIN 933 bolts, and hot dip galvanized DIN 933 bolts when the order includes both socket screws and external hex fasteners.
If the inquiry includes socket screws and metric hex head bolts together, list each product family separately with its own standard, material, grade, finish, and packing requirement.
Tabel Spesifikasi Detail
| Barang | Spesifikasi | Catatan Pembeli |
|---|---|---|
| Nama produk | Sekrup soket baja tahan karat A4-80 | Also described as A4-80 socket head cap screws or Allen head screws. |
| Standar umum | DIN 912, ISO 4762, sekrup soket berbasis gambar | State the exact standard because head dimensions may differ. |
| Kisaran diameter | Ukuran metrik umum seperti M3-M24; ukuran lain ditinjau berdasarkan pesanan | A4-80 availability should be checked by diameter and length. |
| Panjangnya | Panjang standar atau panjang custom sesuai gambar | Tentukan thread penuh, thread parsial, atau panjang thread yang tepat. |
| Benang | Benang metrik kasar; nada halus tersedia berdasarkan permintaan | Fine pitch must be clearly marked on drawings and packing lists. |
| Bahan | A4 / 316-family austenitic stainless steel | Komposisi kimia akhir mengikuti standar dan pesanan pembelian yang dipilih. |
| Kelas properti | A4-80 di bawah referensi ISO 3506 | A4-70 may be more economical where A4-80 is not required. |
| Selesai | Biasa, dipasivasi, diasamkan dan dipasivasi, dilumasi | Hasil akhir harus sesuai dengan paparan korosi dan metode perakitan. |
| Inspeksi | Dimensions, socket gauge, thread gauge, visual appearance, material documents, mechanical reports upon request | Socket depth and drive quality are important control points. |
| Pengepakan | Karton massal, kotak kecil, tas, pengepakan palet, label, kode batang, pengepakan pribadi | Can be supplied according to order requirement. |
Penjelasan Materi dan Kelas
A4 stainless steel is a molybdenum-bearing austenitic stainless group often selected for chloride exposure, marine air, chemical environments, and outdoor equipment. A4-80 identifies a higher-strength stainless property class than A4-70, commonly associated with a minimum tensile strength level of 800 MPa under ISO 3506 reference conditions.
For buyers choosing between A2, A4-70, and A4-80, the decision should consider corrosion exposure, required clamp load, thread galling risk, mating parts, and assembly method. XZ Fastener provides additional background in its guide to baut baja tahan karat kelas A2-70, A4-70, dan A4-80.
A4-80 stainless socket screws should not be treated as a universal replacement for alloy steel socket head cap screws. Alloy steel may offer higher strength, while A4-80 provides stainless corrosion resistance for suitable environments.
Inspection can include head dimensions, socket drive quality, thread fit, surface condition, material documents, and packing checks.
Panduan Pemilihan Permukaan Akhir
A4-80 stainless steel socket screws are commonly supplied in plain stainless or passivated finish. Passivation helps remove free iron contamination and supports the natural stainless protective layer. For demanding appearance or corrosion environments, pickling and passivation may be discussed. Lubrication can be important for socket screws because stainless threads may gall under high tightening pressure.
| Selesai | Penggunaan Khas | Catatan Pembeli |
|---|---|---|
| tahan karat polos | General machinery, indoor assemblies, standard stainless socket screw stock | Hasil akhir yang umum ketika tidak ada perawatan permukaan tambahan yang ditentukan. |
| Pasif | Udara laut, peralatan luar ruangan, mesin kimia, rakitan tahan karat yang bersih | Often requested where corrosion resistance and clean surface are important. |
| Acar dan dipasivasi | Persyaratan pembersihan permukaan yang lebih menuntut | Confirm appearance expectation and acceptance criteria in advance. |
| Dilumasi | Beban penjepit lebih tinggi, perakitan berulang, aplikasi sensitif terhadap rasa sakit | Perilaku torsi berubah ketika pelumasan digunakan. |
| Pelapis baja karbon | Baut DIN 933 berlapis seng, baut DIN 933 oksida hitam, baut DIN 933 galvanis hot dip | Uraian ini biasanya berlaku untuk baut segi enam baja karbon, bukan sekrup soket tahan karat A4 standar. |
For broader coating and finish comparisons, review the XZ Fastener panduan penyelesaian pengikat.
Manufaktur dan Kontrol Kualitas
Factory production begins with review of the standard, diameter, length, thread pitch, material grade, property class, finish, drive dimensions, packing method, and inspection requirement. Depending on size and order details, A4-80 stainless socket screws can be produced by cold heading, thread rolling, machining, or combined processes.
Sebelum produksi
XZ Fastener checks the purchase description, drawing, material requirement, head type, socket drive, thread length, finish, and inspection documents. Buyers can browse broader produk pengikat when the order also includes nuts, washers, threaded rods, anchors, or hex bolts.
Selama produksi
Common control points include head diameter, head height, socket depth, socket gauge fit, thread gauge fit, surface appearance, burr control, and material separation between A2 and A4 stainless grades.
Custom socket screws
For modified heads, special lengths, non-standard thread, shoulder designs, or special packing, XZ Fastener can review pengencang khusus from drawings, samples, or application photos.
Aplikasi
A4-80 stainless steel socket screws are used where corrosion resistance, compact head design, internal drive assembly, and higher stainless strength are required.
- Peralatan kelautan dan mesin pesisir
- Peralatan pemrosesan kimia
- Stainless steel machine frames
- Rakitan pompa, katup, dan instrumen
- Peralatan pendukung makanan dan minuman
- Otomatisasi luar ruangan dan penutup listrik
- Rakitan mekanis yang presisi
- Suku cadang pengganti perawatan untuk lingkungan korosif
For high-vibration or safety-critical joints, the mating thread, tightening method, lubrication, and proof documentation should be reviewed before bulk production.
Cara Mendapatkan Penawaran Lebih Cepat
A clear inquiry helps XZ Fastener quote A4-80 stainless steel socket screws accurately. Please provide:
- Daftar ukuran, seperti M5 x 16, M6 x 20, M8 x 30, M10 x 40.
- Standar atau gambar, seperti DIN 912, ISO 4762, kepala rendah, kepala kancing, kepala countersunk, atau desain khusus.
- Bahan dan kualitasnya, seperti baja tahan karat A4-80, A4-70, A2-70, atau 316.
- Persyaratan benang, termasuk benang kasar, nada halus, benang penuh, atau panjang benang yang tepat.
- Persyaratan akhir, seperti polos, dipasivasi, diasamkan dan dipasivasi, atau dilumasi.
- Kuantitas untuk setiap ukuran dan jadwal pengiriman yang diharapkan.
- Persyaratan pengemasan, termasuk karton curah, kotak kecil, tas, palet, label, kode batang, atau kemasan pribadi.
- Persyaratan inspeksi, seperti sertifikat material, laporan dimensi, pemeriksaan pengukur soket, atau inspeksi pihak ketiga.
Untuk penyelidikan terstruktur, gunakan meminta penawaran halaman atau hubungi XZ Fastener dengan gambar, foto, atau spreadsheet.
FAQ
What is an A4-80 stainless steel socket screw?
It is a stainless steel socket screw made from the A4 stainless group with an 80 property class under ISO 3506 reference. Buyers usually specify it when they need A4 corrosion resistance and higher stainless strength than A4-70.
Is DIN 912 the same as ISO 4762?
DIN 912 and ISO 4762 both refer to socket head cap screw standards, but buyers should state the exact standard required because dimensional details and acceptance expectations may differ.
Dapatkah sekrup soket A4-80 menggantikan sekrup tutup kepala soket baja paduan?
Not automatically. Alloy steel socket screws may provide higher strength, while A4-80 stainless socket screws provide corrosion resistance. The load, environment, and assembly method should be checked before substitution.
Can XZ Fastener supply matching washers or nuts?
Ya. Mesin cuci datar tahan karat, mesin cuci pegas, mur hex, dan kemasan rakitan dapat disediakan sesuai dengan standar sekrup, ulir, bahan, dan persyaratan pesanan.
How can buyers reduce galling risk with A4-80 stainless socket screws?
Buyers can consider lubrication, anti-seize compound, controlled tightening speed, clean mating threads, and correct mating material. The assembly method should be reviewed when high clamp load is required.
Dokumen apa yang dapat diminta bersama pengiriman?
Sertifikat pengujian material, laporan inspeksi dimensi, pemeriksaan pengukur soket, catatan inspeksi benang, daftar pengepakan, dan dokumen lainnya dapat didiskusikan sesuai dengan kebutuhan pesanan.
Can custom A4-80 socket screws be produced from drawings?
Tinggi kepala khusus, dimensi bahu, jarak ulir khusus, panjang khusus, penandaan, dan pengemasan dapat ditinjau dari gambar, sampel, foto, kuantitas, dan detail aplikasi.
Kirim Pertanyaan Sekrup Soket Stainless A4-80 Anda
Send your size list, finish, quantity, packaging method, and inspection requirements. Include the standard or drawing number, head type, thread pitch, thread length, destination, and whether washers or nuts are needed. XZ Fastener will review the details and prepare a quotation according to your order requirement.
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