Because the screws are internally wrenched, they require less surface area and are thus ideal for projects where there is. Hole sizes 124 thumb and wing screws 125 to 127 b7 studs and nuts stud bolts for pressuretemperature piping 21 general purpose endtoend studs 22 tap end stud bolts 23 double end stud bolts 24 bolts. They have a round cap with a hex head and are tightened with a socket wrench drive. The standard metric fastener thread series for general purpose threaded components is the m thread profile and the coarse pitch thread series. Requirements l axis of screw thread basic major diameter minor diameter basic pitch diameter l description a metric machine screw is a straight shank fastener with a metric thread pitch designed to go through a hole or nut that is pre. Din 933coarse thread full thread hex head cap screw available in black, clear and yellow zinc plated, stainless steel diameters from m3m72 in various lengths. A 91612 screw, which is comparable in diameter and is also coarse, has its threads spaced 0. Inch series button head socket cap screws nominal size d basic screw diameter a head diameter max. The m designation for metric screws indicates the outer diameter of the screw in millimetres, so for an m2 screw, the outer diameter is 2mm.
The m3 and m4 nominal screw sizes have two drilled holes spaced 180 degrees apart. Fuller metric extensive range on diniso standard screws with dimensions. The minimum length of thread shall be equal to 12 the nominal screw length plus 0. For example, m10 or m106g, by default, specifies m10 x 1. Metric socket cap screw pictures are a general representation and not an actual picture of the product you will receive. Metric socket head cap screws size table engineers edge. Socket head cap screw 1960 series socket low head cap screw socket head shoulder screw. Socket hex head cap screws are externally threaded machine screws with an internal hex socket drive which corresponds to a hex key or allen wrench. The iso metric screw threads are the most commonly used type of generalpurpose screw thread worldwide. Much like bolts, metric screws are also selected for their screw head and drive style, material, size, and length. Metric screw thread chart metric tap size tap drill inches clearance drill inches m1. Cap screws shall be fabricated from austenitic corrosion resistant steel of types 188, aisi 384, or equivalent types, and shall have a minimum tensile strength of 80,000 psi for sizes up to and including 58 in and 70,000 psi for sizes larger than 58 in.
The main difference between each of the hex cap screw standards is the width across the flats dimensions for the m10, m12, and m14. The above are types of screws with a cylindrical head and an internal hexagonal drive. Screws round head screws 11 various head styles machine scerws 12 to 123 tapping screws approx. For example, for a threaded spacer, the metric requirement might be m 3. Unbrako socket cap screws offer resistance to a greater degree than any other threaded fasteners you can purchase offtheshelf. Product standards require the manufacturers head marking to appear on the top of all cap screws 14 diameter and larger. Plain finish metric socket cap screws with hex drive and coarse thread. Hex head cap screws are typically used to create a bolted joint, in which a. Plating see appendixa for information on the plating of steel lag bolts. Din 933 1987 this standard contains specifications for fully threaded hexagon head screws with coarse metric thread for diameters m 1. Threads will vary according to the individual bolt sizes and dimensions. Plain black metric socket head cap screws with coarse thread grade 12.
Get high level of chemical and corrosion resistance with the use of this extremely durable plain steel internal hex metric socket cap screw. For example din 931 is for partially threaded coarse thread metric hex cap screws. Types of screw head styles include binding, button, cheese, fillister, flat, low head socket cap, and knurled. The self colour screw surface finish for self colour is black oxide after heat treatment. Din 960fine thread partial thread hex head cap screw available in black. Drilled head metric hexagon socket head cap screws normally are not available in screw sizes smaller than m3 nor larger than m36. Metrics in engineering metric fasteners screws, nuts. For example, a hex cap screw with a 12 thread diameter, threads per i nch, and a 2 length could be listed like this. Bearings, often indicated in metric measurement, include types such as ball bearings, ball transfers, mounted bearings, and roller bearings. It, like a screw, has one end that screws into a tapped hole. The basic thread lengths lt listed directly below the nominal sizes in the table above represents the nominal length up to which all screws of that diameter shall be fully threaded. Torque calculated in accordance with vdi 2230, systematic calculation of high duty.
The hex head cap screw is a common fastener in construction and machine assembly. The most common standard socket cap screw is to din 912 in 12. All head dimensions are directly related to the basic screw diameter as follows. They were one of the first international standards agreed when the international organization for standardization iso was set up in 1947.
Mcmastercarr is the complete source for your plant with over 595,000 products. Nominal screw sizes m5 and larger have six drilled holes spaced 60 degrees apart unless the purchaser specifies two drilled holes. A for plain heads where high strength and ease of installation are required. However, in practice the actual diameter might be between 1. Socket head cap screws are commonly used in machine assembly, especially for removable panels and parts. Metric hex cap screws eagle fastener maintains a large inventory of metric cap screws.
Metric socket head cap screws din 912 bs 4168 iso 4762 materials and finishes steel 12. Metric socket hd cap screw dimensions west coast fasteners. Screw plain 102602 stainless steel 188 inch 104 stainless steel 316 inch. Inch series flat socket head cap screws continued mechanical properties and tightening torques nominal size basic screw diameter tensile strength pounds min. Because the screws are internally wrenched, they require less surface area and are thus ideal for projects where there is insufficient space for traditional wrenches or sockets.
The information below lists the required dimensional, chemical and physical characteristics of the products in this purchase order. Requirements l axis of screw thread basic major diameter minor diameter basic pitch diameter l description a metric machine screw is a straight shank fastener with a metric thread pitch designed to go through a hole or nut that is pretapped to form a mating thread for the screw. All data is correct to the best of our knowledge, however tr cannot be held responsible for any errors or omissions. Iso metric screw thread chart 1st 2nd height flat size external diameter choice choice h mm af mm ac mm 10. Specifications ansiiso metric hex cap screws metric class 12. The above specification is for coarse threads only. Nonstock diameter torque calculated to induce 420 mpa in the screw threads.
We break down the specifics, terminology, lengths, nominal sizes, dimensions, and more that will help aid in selecting the right part for your applications and requirements. A cap screw made from 316 stainless steel, an austenitic alloy which. M spline socket size nominal j hexagon socket size nominal t key engagement min. Same day shipments are also available on most items.
Product guide industrial fasteners unbrako australia deepak fasteners australia ltd. Full dimensional tables including product photographs and drawings are available by clicking on the item. Fastenerdata socket cap screws fastener specifications. Unified screw diameters are measured in inches lowest to highest as 0 to 10. The screw head is designed to fit a ratchet or spanner torque wrenches allowing you to tighten the screw to your exact specifications. Iso metric hardware specifications table chart engineers. A stud is a fastener with no head but it has threads at both ends of the shank. Guide to design criteria for bolted and riveted joints. A cap screw made from one of the following austenitic alloys. Din 960fine thread partial thread hex head cap screw available in black, clear and yellow zinc diameters from m8m36 in various lengths. To determine the threaded portion of the screws with a nominal length greater. Socket head cap screws socket screws and set screws. Choose the right cap head for your specific application. Once you have selected one of our american standard parts, you just need to add your metric requirement in the rfq.
Iso metric hexagon socket screws are limited to two different head shapes. Choose from metric hex, flange and lock nuts with coarse or fine thread. Supplier of metric nuts, bolts, screws, washers and fasteners. Supplier of metric nuts, bolts, screws, washers and.
Metric coarse socket cap screw full thread nylon66 din912. Ss button head socket cap screws, stainless steel the information below lists the required dimensional, chemical and physical characteristics of the products in this purchase order. A cap screw made from 316 stainless steel, an austenitic alloy which differs from 188 by its molybdenum content 23% and. Suggested seating torque values, only apply to metric grade 12. M2 screws small screws micro screws fastenright ltd. Metric fasteners are selected for specific functional applications. Thread dimensions for iso medium class threads 1,6mm to 300mm. A screw is a headed and threaded bolt used without a nut.
M2 screws are typically used in the manufacture of small items of electrical equipment, laptops, cameras and mobile phones. Din 960 is the specification for partially threaded fine thread metric hex cap. A metric iso screw thread is designated by the letter m followed by the value of the nominal diameter d the maximum thread diameter for external thread and the minimum diameter for internal one and the pitch p, both expressed in millimetres and separated by the hyphen sign, e. Screws too short for this formula shall be threaded as close to the head as practicable. It is inserted into an internally tapped hole and tension is induced by rotation of the screw head. Socket cap screw data an extensive reference for socket cap screws.