ASTM F1554 Bolts Price - ASTM A490 A490M Heavy Hex Structural Bolt – Dingshen Metalworks

ASTM A490 A490M Heavy Hex Structural Bolts The bolts are intended for use in structural connections. These connections are covered under the requirements of the Specification for Structural Joints Using ASTM A490 Bolts, approved by the Research Council on Structural Connections, endorsed by the American Institute of Steel Construction and by the Industrial Fastener Institute.   Dimension: ASME B18.2.6, ASME/ANSI B18.2.3.7M Inch Size: 1/2"-1.1/2" with various length Metric Size: M12-M36 with various length Grade: ASTM A490 A490M Type-1 Finish: Black Oxide, Zinc Plating, Dacromet, and so on Packing: Bulk about 25 kgs each carton, 36 cartons each pallet Advantage: High Quality and Strict Quality Control, Competitive price,Timely delivery; Technical support, Supply Test Reports Please feel free to contact us for more details.

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    The heads are ready for the 4.8 flat top pistoned 5.3 that is going into the ’87 Chevy Truck. These 862 cast heads have been fully home ported and used 2″ LS1 intake valves installed.

    These heads were not flow tested, but I expect them to flow a little better then LS6 243 cast heads as my past heads have done.

    I made the decision to run the 2″ valve because it was used so often in other LS motors and even in the HO5.3 with 243 heads, which is basically what I’m coping here.

    I measured the throat and all diameters of the 5.3 valve seat vs the ones in a pair of LS1 heads. They came out to appear to be the same valve seat.

    Springs are PAC 1218 .600″ Lift. Link below:

    https://www.briantooleyracing.com/600-lift-pac-1218-beehive-valve-springs.html

    Comp 511-16 Valve Stem Seals Here:

    https://www.summitracing.com/parts/cca-511-16/overview/

    UPDATE:
    The heads were later pulled off of the truck and milled .045″ to achieve 11.4:1 Compression Ratio.



    Websit: https://www.jmtornillo.com
    Ahora me gustaría presentarle las tuercas delgadas.
    Los estándares son ASME/ANSI B18.2.2 y DIN439.
    Los grados son ASTM A563 Gr.A&SAE J995 Gr.2.,5, este es la tuerca delgada de Grado 5 Zincada amarilla y este es Grado 2 Óxido negro.
    La tuerca es disponible con el perno hexagonal en aplicación.
    Tambien podemos fabricar tuercas hexagonales delgadas especiales según sus muestras y dibujos.
    Shanghai Jian y Mei es un proveedor profesional de tuercas de estándar IFI y DIN, por ejemplo tuerca hexagonal pesada, tuerca hexagonal, tuerca cuadrada, tuerca flange, tuerca de bloqueo y Tuercas hexagonales de Acoplamiento etc.
    Tenemos tamaños completos de M3 a M100, y 3/16” a 4”.
    Los materiales pueden ser acero al carbono, acero de aleación, acero inoxidable y cobre.
    Grados disponibles de tuercas son ASTM A563 grado A, grado C, grado DH, ASTM A194 Gr. 2, 2H, 7, 7M,8, 8M, SAE J995 Gr.2, 5,8; CL4, 5, 6, 8, 10, 12.
    Los acabados son Zinc, Zinc amarillo, Óxido negro, galvanizado etc.
    Tenemos más de ocho años de experiencia exportar Tuerca hexagonal delgada al mercado américo y poseemos buena fama, enfíen en nosotros que somos su proveedor fiable de fijación!
    No dude en contactarnos en cualquier momento!
    Shanghai Jian & Mei Industry and Trade Co., Ltd
    Rm.27202, No.295 South Lingyan Road, Pudong,Shanghai,P.R.C, Code:200126
    Tel: 0086-21-33328690-8058
    Fax: 0086-21-68413263
    English Web:www.jm-industry.com Websit: https://www.jmtornillo.com
    Contact: Mrs.Xarella Huang
    Email: Jminfo@jm-industry.com
    Websit: https://www.jm-industry.com