Is the Double bolt for BANJO inch, carbon steel suitable for high-pressure hydraulic systems without a washer?

Double bolt for BANJO inch, carbon steel Format: based on the provided description . "Double screw without washer for BANJO type - Z, inch. Material: carbon steel, galvanized" . it is not recommended to use this fastener in high-pressure hydraulic systems without a washer. Reasons: - Sealing: Banjo fittings transmit fluid through a hollow bolt and rely on crush washers (typically copper or aluminum) to create a reliable, leak-tight seal between the banjo head and mating surface. A bare double bolt without a washer will not provide the necessary sealing surface and is likely to leak under pressure. - Pressure and safety: High-pressure hydraulic systems generate significant clamping and hoop stresses at the joint. Without a proper washer or sealing element, the joint cannot guarantee pressure containment or resistance to vibration and pulsation, increasing risk of leakage or catastrophic failure. - Material and compatibility: Carbon steel, even galvanized, may be mechanically adequate for some pressure ranges, but galvanization can be damaged during torqueing and may not replace the function of a washer. Corrosion and galvanic issues can further compromise sealing over time. - Torque and deformation: Washers (crush washers) are designed to deform to fill surface irregularities. A plain bolt head tightened against the banjo eye may not achieve an even clamp load or proper deformation required for sealing. If you must use Double bolt for BANJO inch, carbon steel Format in a hydraulic application, always use the specified crush washers or sealing rings recommended by the fitting/manufacturer and follow torque specs. For critical high-pressure systems, consult manufacturer data or a qualified engineer to confirm compatibility.

Does the Double bolt for BANJO inch, carbon steel require a specific torque when installed without a washer?

The Double bolt for BANJO inch, carbon steel does not include specific torque information in the provided description of the Double screw without washer for BANJO type - Z, inch. Material: carbon steel, galvanized. Without manufacturer torque specs, you should follow general practice for carbon steel fasteners of the same diameter and thread class, or consult the equipment manufacturer. Installing without a washer can change clamping and bearing surface - reduce torque to avoid crushing or use a hardened washer if recommended. If critical, obtain the official torque value from the supplier or engineering documentation before installation.

Can Double bolt for BANJO inch, carbon steel be used in corrosive environments despite galvanization?

No. Double bolt for BANJO inch, carbon steel Format, galvanized is not recommended for use in highly corrosive environments despite galvanization. Explanation: - Galvanization (zinc coating) provides good general corrosion resistance for carbon steel in mild to moderate environments (outdoor, humidity, light industrial exposure). - In aggressively corrosive conditions. such as marine (salt spray), chemical exposure (acids, alkalis), chlorine, sulfurous atmospheres, or long-term wet/dry cycles. zinc coating corrodes faster and may fail, exposing the underlying carbon steel to rapid rust and loss of mechanical integrity. - Galvanized coatings can also suffer from undercutting or pitting where the coating is damaged, and they offer limited protection at threads, bearing surfaces, or where tight fits cause abrasion. - For corrosive environments consider alternatives: stainless steel (e.g., A2/A4), duplex stainless, Monel, or properly coated/treated fasteners (hot-dip galvanizing with compatible design, epoxy/polymer coatings, or cathodic protection) depending on severity. Recommendation: If your application exposes Double bolt for BANJO inch, carbon steel Format to salt air, chemicals, constant moisture, or long service life requirements, choose a corrosion-resistant material or higher-grade protective treatment rather than relying on standard galvanization.

Double bolt for BANJO inch, carbon steel

All products, Fittings for high-pressure hoses/

Additional information

Double screw without washer for BANJO type – Z, inch. Material: carbon steel, galvanized.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
TI-ZBB620-02	Double 1/8" BANJO screw	-	-	In stock	Enquiry
TI-ZBB620-04	Double 1/4" BANJO screw	-	-	In stock	Enquiry
TI-ZBB620-06	Double 3/8" BANJO bolt	-	-	In stock	Enquiry
TI-ZBB620-08	Double 1/2" BANJO screw	-	-	In stock	Enquiry
TI-ZBB620-12	Double 3/4" BANJO screw	-	-	In stock	Enquiry
TI-ZBB620-16	Double 1" BANJO screw	-	-	In stock	Enquiry