21. 0 10. (3% total runout) or 0.005 in. Standard Head - Stainless Steel . 0000007618 00000 n The socket shall be concentric with the shank within 1-1/2% of the basic screw diameter, D maximum. Use an allen wrench for installation and removal. Cap screws shall be fabricated from austenitic corrosion resistant steel of types 18-8, AISI 384, or equivalent types, and shall have a minimum tensile strength of 80,000 psi for sizes up to and including 5/8 in and 70,000 psi for sizes larger than 5/8 in. 6. Four major types of joints are to be considered, as shown below. 1. The chamfer shall extend slightly below the root of the thread and the edge between the flat and chamfer may be slightly rounded. 14. whichever is grated for sizes through 1/2 in and 3% (6 % total runout) for sizes above 1/2 in. K values: waxed (e.g. The grip gaging length is the distance, measured parallel to the axis of the screw, from the bearing surface of the head to the first complete (full form) thread under the head (see Table 1B). FHCS: Flat head cap screw. The body length is the length, measured parallel to the axis of the screw, of the unthreaded portion of the shank (See table 1B). The allowable tolerance for LEAD POINT captive screws only shall be as tabulated below. [Illustration of Tensile: Stress-Strain Relationship] Bolted Joint Design: Mechanical Properties of Steel Fasteners in Service. See Note 4 for LT values. 12. Various types of joints and fasteners are used to assemble components together throughout Freefly products. endstream endobj 2669 0 obj<>/Size 2646/Type/XRef>>stream 15. A torque value will be influenced by the fastening methods and tools used. CHCS: Combo head cap screw. 0000004507 00000 n 0000011397 00000 n 8. Inch Series Flat Socket Head Cap Screws (continued) Mechanical Properties and Tightening Torques Nominal Size Basic Screw Diameter Tensile Strength Pounds Min. 5. System of Measurement; Inch: Metric : Thread Size. In the case of bolts and nuts, this elastic deformation between the bolt head and the nut is critical in order to create tension or clamping force to hold the joint together. On socket screw drawings when the distance from the bearing surface of the head to the threading is dimensioned, regardless of the type of thread representation, the dimension should be noted to indicate whether Body Length or Grip Length is required. 8.8 Grade Bare Steel/Zinc Plated; 12.9 Grade Bare Steel/Zinc Plated; 12.9 Grade Bare Steel FINE Thread ; A2/A4 Stainless Steel; DIN 7991 / ISO 10642 Flat Head Countersunk Socket. DIN 912 / ISO 4762 Socket Head Cap Screws. Body Length, LB. The accuracy of the tightening method needs to be accounted for, in order to not over-tighten the fastener. Fastenal. DIN 931 / ISO 4014 Partially Threaded Hex Cap Screw, 10.9 Grade Bare Steel / Yellow Zinc Plated, 10.9 Grade Bare Steel with Extended Threads, DIN 933 / ISO 4017 Fully Threaded Hex Cap Screw, DIN 960 / ISO 8765 Partially Threaded Hex Cap Screw (Fine Thread), DIN 961 / ISO 8676 Fully Threaded Hex Cap Screw (Fine Thread), Japanese Industrial Standard (JIS) Hex Fasteners, JIS B1189-10.9 Small Head Hex Flange Zinc Plated, DIN 912 / ISO 4762 Socket Head Cap Screws, DIN 7991 / ISO 10642 Flat Head Countersunk Socket, DIN 911 / ISO 2936 Short Arm Chrome Vanadium, DIN 911 / ISO 2936 Long Arm Chrome Vanadium, DIN 125 / ISO 7089,7090 Bare Steel/Zinc Plated, DIN 125 / ISO 7089,7090 A2/A4 Stainless Steel, DIN 126 Bare Steel/Hot Dipped Galvanized (ISO FIT), DIN 1440 For Clevis Pins Bare Steel/Zinc Plated, DIN 6916HV-10 Structural Bare Steel/Yellow Zinc Plated, DIN 127B Spring Steel Bare Steel/Zinc Plated/Yellow Zinc Plated, DIN 127B Spring Steel Hot Dipped Galvanized, DIN 127B Alloy Steel Lock Washer Yellow Zinc Plated, DIN 7980 High Collar Bare Steel/Zinc Plated, DIN 6798V Serrated Countersunk Zinc Plated, NFE 25-511 Contact Washer Yellow Zinc Plated, DIN 2093 Disc Spring Carbon Steel/Chrome Vanadium, DIN 137B Crinkled Spring A2 Stainless Steel, DIN 934 Bare Steel/Zinc Plated/Hot Dip Galvanized, DIN 985 Nylon Insert Zinc Plated / Hot Dipped Galvanized (ISO FIT), DIN 963 Slotted Flat Countersunk A2 Stainless, DIN 965 Phillips Flat Countersunk A2 Stainless Steel, DIN 7985 Phillips Pan Head A2 Stainless Steel, DIN 975-8.8 Hot Dipped Galvanized (ISO FIT), ISO 529/DIN 374 HSS-G/HSS-E Metric Machine Taps, DIN 580 Lifting Eye Bolt A2 Stainless Steel, DIN 479-8.8 Square Head Set Screw Bare Steel, DIN 931-A2/A4 / ISO 4014 Hex Head Cap Screw Part Thread, DIN 933-A2/A4 / ISO 4017 Hex Head Cap Screw Full Thread, DIN 912-A2/A4 / ISO 4762 Socket Cap Screw, DIN 7991-A2/A4 / ISO 10642 Flat Head Countersunk Socket, DIN 125-A2/A4 / ISO 7089,7090 Flat Washer, DIN 965-A2 Phillips Flat Head Countersunk, DIN 975-A2 Threaded Rod (1 Meter) FINE Thread, DIN 933 / ISO 4017 Hex Cap Screw Fully Threaded, DIN 963 Slotted Flat Head Countersunk Machine Screw, Holo-Krome Grade 9 Inch Heavy Hex Cap Screws, Holo-Krome 12-Point Flange Screws – Imperial, Short Arm Hexagon Key CV Steel Black Finish, Long Arm Hexagon Key CV Steel Satin Finish, 1. (See paragraph 1.8). shall be optional. For screws of nominal lengths longer than those for which LG and LB values are tabulated in Table 1B and for screws over 1 inch in diameter, the maximum grip gaging length LG and the minimum body length LB of the screws shall be determined as follows: All drawings and designs herein have been reviewed and have been determined to meet the requisite specifications contained herein. We will have a grid of logos, when clicked takes you to their estore website. 280 East Main St. Suite 107Newark DE 19711, USA, © 2016 Extreme Bolt & Fastener ® | Powered by. The included angle of the point should be approximately 90 degrees. The edge between the top of the head and the chamfer may be slightly rounded. 4. NOTE: The actual clamp load is dependent on a variety of factors including the material, condition of the fasteners, surface finish, lubrication etc.
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