304 Semicircular Head Screw Vandal Proof Screw Oneway Security Screw

Product pictureDescription   Standard:DIN GB ISO ASTMDiameter:1/4"-2 1/2",M4-M64Length:≤800mm or 30"Material:Carbon Steel, Alloy Steel, Stainless Steel, BrassGrade:SAE J429 Gr.2, 5,8; ASTM A307Gr.A, Class 4.8, 5.8, 6.8, 8.8, 10.9, 12.9;A2-70,A4-70,A4-80Thread:M,UNC,UNFFinish:Plain,Black oxide, Zinc Plated(Clear/Blue/Yellow/Black), H.D.G, Nickel, Chrome,PTFE,Dacromet,Geomet,Magni,Zinc Nickel,Zinteck.Packing:bulk in cartons (25kg Max.)+wood Pallet or according to customer special demandApplication:Structural Steel; Metal Buliding; Oil&Gas;Tower&Pole; Wind Energy; Mechanical Machine; Automobile: Home DecoratingEquipments:Caliper, Go&No-go gauge, Tensile test machine, Hardness tester, Salt spraying tester, H.D.G thickness tester, 3D detector, Projector, Magnetic flaw detecter,SpectrometerCompany IntroductionShanghai G&T Industry Co., Ltd. is a manufacturer of all standard DIN, BS,JIS and ISO fasteners and other industrial parts with well-equipped testing facilities and strong technical force. With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in Mold, Electricity, Construction, Solar energy, Automotive, Machinery & Equipment and other industries.Q1: Why choose us? To provide our customers with first-class services in the supply of quality fasteners minimizing costs. 1.1. Vision: We wishes to build successful relations with our partners and be their first choice as an  fasteners supplier. 1.2. Mission: professional customer service, and innovation in technology. Further more, we do not only offer you fasteners with more reasonable quality and price than your expectations, but also would like to be your friend and to provide you market sales suggestion for your reference, if you have a better idea , please feel free to share with us. Q2.How is quality ensured? All our processes strictly adhere to ISO9001:2008 procedures. We have strict quality control from producing to delivery.Our company had strong technology support, We have cultivated a group of managers who are familiar with product quality , good at modern concept of management. Q3:If you can not find on our website the product you need how to do? You can send the pictures/photos and drawings of the products you need by email , we will check if we have them. We develop new models every month, Or you can send us samples by DHL/TNT, then we can develop the new model especially for you. Q4:Can You Strictly Follow The Tolerance on The Drawing And Meet The High Precision? Yes, we can, we can provide high precision parts and make the parts as your drawing. Q5: How should I order and make payment? By T/T, for samples 100% with the order; for production, 30% paid for deposit by T/T before production arrangement, the balance to be paid before shipment. Q6: What's your Delivery Time? Standard parts: 7-15days Non-standard parts: 15-25days We will make the delivery as soon as possible with the guarantee quality. Q7:How to Custom-made (OEM/ODM) If you have a new product drawing or a sample, please send to us, and we can custom-made the hardware as your required. We will also provide our professional advices of the products to make the design to be more realized & maximize the performance. Q8:Which mode of transport would be better? In general, the production are heavy, we advice to make delivery by sea, Also we respect your views of other transportation as well.   /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1