304 Stainless Steel Three Part Combination Screw Hex Round Head Machine Screw Assembly Phillips Pan Head Sems Screw

• Customization: Available
• Material: Stainless Steel
• Type: Round Head
• Model NO.: Pan Head Sems Screw
• Groove: Cross
• Connection: Common Bolt
• Head Style: Round
• Standard: DIN, GB, ANSI, JIS, GOST
• Grade: 8.8
• Application: Machinery, Chemical Industry, Environmental
• Transport Package: 25kg
• Specification: BULK IN 25KGS CARTON/ PALLET
• Trademark: EN
• Origin: Shagnhai
• HS Code: 7318150000
• Production Capacity: 1000 Tonnes/Month
• Package Size: 6.00cm * 3.00cm * 2.00cm
• Package Gross Weight: 0.200kg

Product Description

Sems screws (also known as part combination screws or combined screw ) usually refer to fastener sets that are pre-assembled or matched with machine screws, , and . They are widely used in various industries, including machinery, electronics, construction, and others.

Product Name	304 Stainless Steel Three Part Combination Screw Hex Round Head Machine Screw Assembly Phillips Pan Head Sems Screw
Standard:	DIN84 DIN85 DIN963 DIN964 ISO1207 ISO1580 ISO2009 ISO2010 JISB1101 DIN7985HP DIN7985 DIN965 DIN966 DIN967 ISO7045 ISO7046 ISO7047 ISO7048 JISB1111B JISB1111F JISB1111O JISB1111P JISB1111R JISB1111T DIN7985TX ISO14579 ISO14580 ISO14581 ISO14583 ISO14584 DIN251 DIN6912 DIN7984 DIN7991 DIN912 ISO10642 ISO7379 ISO7380 JISB1174 JISB1194
Size	M1.2 to M12
Material	Carbon steel: Q235, A36, A572, C1006, C1008, C1010, C1018, C1018A, C1022, C1035K, C1045K, 12L14.etc Stainless steel: 253MA,SS201,202,301,302,303,304,304L,309,310S,314,316,316L,316Ti,317L,321,347,410,416,420,430,435,904 Aluminium: AL6061, AL6063, 7075 etc. Titanium or titanium alloy: TAD, TA1-TA8, TB2, TC1-TC10 etc. Brass: C36000, C37700, C38500, C26800, C21000, C3602, C3604, H59, H62, H65, H68, H70, H90, etc. Alloy steel: SCM435,10B21,40Cr, C10B33 Precipitation hardening steel: 17-7PH Urea steel: 724L, 725LN Superalloy: GH4169, GH4145, GH2132 Nickel Alloy: Nickel 200, Nickel 201 Non-metallic: Zirconia Ceramic, PFA, Polypropylene, PVDF, polyphenylene sulfide, Polycarbonate, PEI, PTFE, PEEK, PVC, fiberglass, PA66 nylon, POM, Polyethylene. Duplex Stainless Steel: S32750, S32760, S2205, S2507,F51, F53, F55, F60, F61, 2205 Steel: C15, C35, C45(K1045), S45C, C46(K1046), C20, etc Iron: 12L13,12L14,12L15 etc. Corrosion-resistant alloy: XM-19, C4, Alloy20, Alloy28, Alloy31, 904L, 318 Copper: Brass, Phosphor bronze, Silicon bronze, Red copper, Beryllium copper and Copper etc. Bronze: C51000, C52100, C54400, etc.
Non-standards:	OEM is available, according to drawing or samples
Packing:	bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand
Leading Time :	20-30 days or based on order required

 

Machine Sems Screw By Material
We provide machine sems screw products in a variety of materials, from economical and practical to series with excellent corrosion resistance, to special materials such as , and suitable for special working conditions.

We can provide comprehensive selection Suggestions to ensure that you can obtain performance-matching and cost-optimal solutions for every application scenario.

Machine Sems Screw By Head Types
T&Y Hardware supplies a wide range of sems screws, featuring various head designs. Common styles include , , , , , ,,, and , etc., which are suitable for different installation requirements and appearance requirements to meet diverse fastening needs.
Sems Screw By Drive Types
We provide a comprehensive range of machine sems screw drive solutions, includingross, , , Flat , , and other standard drive methods.

If you need other special drive machine screws, we can also provide customized design to ensure the perfect match for your fastening application.
More Products

In addition to flat washers and spring washers, our combination screw washers can also choose other types such as lock washers, square washers, etc. For more information, please click on the picture to view.

Company Profile

Established in 2002, Shanghai T&Y Hardware Industry Co., Ltd. is a professional manufacturer specializing in high-quality fasteners, including screws, bolts, nuts, washers, and stamping parts.
* Certified & Compliant: Fully compliant with ISO9001, ISO45001, ISO14001, and RoHS to guarantee top-tier international quality and eco-friendly standards.
* OEM/ODM Expert: Send us your drawings or creative ideas-we possess the strong R&D capacity to deliver perfect finished products
T&Y Hardware focuses on the production and supply of all kinds of bolts (including , and and , (such as , , , etc.), (, , ), screws (, , ), anchors (, , ), threaded rods (, , ), high-precision and
Each year, we actively participate in leading hardware and machinery exhibitions worldwide, including the Saudi Building Materials Exhibition, Fastener Fair Stuttgart, Las Vegas Auto Parts Exhibition, Atlanta Machinery Exhibition, and Hannover Messe.
These international platforms allow us to showcase our latest innovations while forging strong connections with top industry leaders. We sincerely look forward to meeting new potential partners at our next stop to explore collaborative business opportunities and drive mutual growth.

Q1: What is your Minimum Order Quantity (MOQ)?
A1: For standard in-stock items, we support small trial orders with no strict MOQ. For mass production or custom orders, the MOQ generally ranges from 100 kg to 500 kg per specification, depending on the product size and processing requirements. Please contact our sales team for specific details.
Q2: How do you ensure the quality of every process?
A2: As an ISO 9001 certified manufacturer, every production stage is strictly monitored by our in-house Quality Control department. We utilize advanced testing equipment (including tensile testing machines, salt spray testers, and thread gauges) to conduct 100% inspections. We provide Material Test Certificates (MTC) for every batch and welcome third-party inspections like SGS or TÜV.
Q3: How long is your delivery time?
A3: For in-stock items, the delivery time is 7 to 10 days. For mass production or custom orders, it generally takes 30 to 45 days, depending on the order volume and specific production requirements.
Q4: What is your payment method?
A4: Our standard payment term is 30% T/T deposit in advance, with the remaining 70% balance paid against the B/L copy. For orders under $1,000 USD, we recommend 100% advance payment via T/T to minimize international bank charges. We also accept L/C at sight for large orders.
Q5: Can you provide free samples?
Optimized: Yes, we provide standard samples free of charge, but the courier/freight cost is covered by the customer. For custom-made samples based on your drawings, a sample tooling fee may apply, which is refundable upon bulk order placement.
Q6: What materials and strength grades can you provide for your fasteners?
A6: We work with a wide range of materials, including Carbon Steel, Alloy Steel, Stainless Steel (SUS304/SUS316), and Brass. For strength grades, we specialize in high-tensile fasteners, offering Grade 4.8, 8.8, 10.9, and 12.9 to meet rigorous industrial and engineering standards.
Q7: What surface treatments do you offer for corrosion resistance?
A7: We provide comprehensive surface finishing options, including Plain, Zinc Plating (White/Yellow/Black), Hot-Dip Galvanized (HDG), Black Oxide, Dacromet, and Geomet. All treatments comply with environmental standards and can meet specific salt spray test requirements.
Q8: Do you support custom packaging and private labeling?
A8: Yes. Our standard export packaging consists of 25kg cartons on sturdy, film-wrapped pallets. However, we fully support custom small box packaging, private labels, and barcode printing to help you build and promote your own brand in your local market.