Original SANY Hollow Screw 60272895 Construction Machinery Parts

The genuine SANY parts reference 60272895 is the Screw, Hollow, a precision‑machined banjo bolt with a cross‑drilled passage used for fluid transfer in hydraulic and lubrication systems of SANY heavy machinery. The 60272895 hollow screw allows oil, fuel, or coolant to flow through its center while sealing against a banjo fitting, providing a compact, leak‑free connection in confined spaces.

Manufactured from case‑hardened carbon steel with a zinc‑nickel coating, this hollow screw withstands pressures up to 350 bar and temperatures from -40°C to +150°C. Each 60272895 unit is 100% inspected for thread form, cross‑hole alignment, and sealing integrity, guaranteeing reliable fluid transfer in SRT dump trucks, SY excavators, SW wheel loaders, and motor graders.

Screw, Hollow

Полый винт

Tornillo hueco

Screw, Hollow

Полый винт

Tornillo hueco

Screw, Hollow

Полый винт

Tornillo hueco

Material and Design of Hollow Screw 60272895

The hollow screw 60272895 is machined from alloy steel (C35E) and case‑hardened to a surface hardness of 50-55 HRC. The thread is metric M12 x 1.5 with tolerance 6g, rolled for fatigue resistance. The screw has a central axial bore of 4.0 mm diameter and two radial cross holes (3.0 mm diameter) located near the center of the threaded section, allowing fluid to pass from the bore to the surrounding banjo fitting.

The head is an external hexagon (17 mm across flats) with a captive sealing washer groove. Two copper or bonded sealing washers are used (one under the head, one under the nut, not included). The hollow screw is designed to be torqued into a threaded port with a banjo fitting over the cross holes. The screw is zinc‑nickel plated (8-12 µm) with black trivalent passivation, providing 500 hours of salt spray resistance to red rust (ASTM B117).

The internal bore is deburred and polished to ensure smooth fluid flow without turbulence or particle trapping. The cross holes are drilled after thread rolling to maintain thread integrity. The screw is capable of flow rates up to 80 L/min with a pressure drop of less than 0.5 bar. The overall length is 45 mm, with a thread length of 20 mm.

All 60272895 screws are 100% inspected for bore diameter, cross‑hole position, and thread dimensions. A sample from each batch is torqued to 50 Nm in a test fixture and pressurized to 350 bar with hydraulic oil for 2 minutes with zero leakage. A laser‑etched batch code on the hex head provides full traceability.

Critical Applications of Hollow Screw 60272895 in SANY Equipment

The hollow screw 60272895 is used as a banjo bolt in hydraulic and lubrication circuits. Typical applications include connecting hydraulic hoses to pumps, valve blocks, and cylinders where space is limited. On SRT dump trucks, it secures the brake caliper fluid line. On SY excavators, it is used on the pilot valve block and the swing motor case drain. In SANY diesel engines, it connects the fuel filter head to the injection pump.

The hollow design allows fluid to flow radially through the cross holes into a surrounding banjo fitting, then out through the axial bore. This arrangement eliminates the need for bulky right‑angle fittings. The screw must be tightened with two sealing washers (copper or bonded) to prevent leakage. A missing or damaged washer will cause immediate fluid loss.

For fuel systems, the hollow screw must be kept clean – any debris inside the bore can clog injectors. Always replace the sealing washers when the screw is removed. Use only genuine SANY hollow screws for guaranteed flow capacity and pressure rating.

Compatible SANY Models & Interchange Information

The hollow screw 60272895 is used across SANY’s heavy equipment line: SRT45, SRT55, SRT95, SRT115 dump trucks; SY215 to SY500H excavators; SW305, SW405, SW465 wheel loaders; SMG200/220 graders; and STC crawler cranes. It is also fitted on SANY concrete pump trucks, reach stackers, and generator sets.

The thread is M12 x 1.5 (metric coarse). The screw fits banjo fittings with a 12 mm bore. Always verify the original screw length and cross‑hole position. When ordering, specify 60272895 to receive the correct M12 thread, 4 mm axial bore, and zinc‑nickel coating.

For fleet maintenance, stock genuine 60272895 screws. Aftermarket hollow screws often have misaligned cross holes or lack proper hardening, leading to leakage or thread stripping. Genuine SANY screws guarantee correct flow path and pressure integrity.

Technical Specifications – Hollow Screw 60272895

Proper Installation of Hollow Screw 60272895

Before installing the hollow screw 60272895, clean the threaded port and the banjo fitting. Use two new sealing washers (copper or bonded – not supplied) – one under the screw head and one under the nut. Place the banjo fitting over the screw, then insert the screw through the fitting and into the port. Hand‑tighten until the washers contact the surfaces.

Using a 17 mm socket and torque wrench, tighten the screw to 50 Nm. Do not exceed 60 Nm. Over‑torquing can strip the threads or extrude the sealing washers. After tightening, rotate the banjo fitting to align the hose without stressing it. The fitting should still swivel slightly – if it is locked, the screw is too tight.

Pressurize the system and check for leaks. If a leak is present, tighten the screw incrementally (max 55 Nm). If it still leaks, replace the sealing washers and re‑torque. Never reuse old washers – they have taken a compression set. Store new screws in a dry environment. Use only genuine SANY screws for guaranteed bore alignment.

Symptoms of a Damaged Hollow Screw 60272895

A failed 60272895 hollow screw will show fluid seepage around the hex head or the banjo fitting. If the cross holes are misaligned or blocked, flow will be restricted, causing slow actuator response or pump noise. A stripped hex head prevents removal. A cracked screw (due to over‑torque or fatigue) may cause sudden fluid loss and pressure drop.

If the screw was cross‑threaded, it will not tighten properly and may damage the port threads. Always start the screw by hand. Corrosion (red rust) on the screw indicates coating failure – replace it. A seized banjo fitting (cannot swivel) suggests the screw is over‑torqued or the washers are crushed.

During maintenance, inspect the screw for thread damage, bore blockage, or hex wear. Replace the screw if any damage is found. Use only genuine SANY hollow screws for replacement.

Quality Assurance & Full Traceability for 60272895

Every hollow screw 60272895 is manufactured in an IATF 16949 certified facility. The process includes cold heading, thread rolling, case hardening, drilling of axial and cross holes, and zinc‑nickel plating. In‑process inspections verify thread quality (laser), bore diameter (air gauge), and cross‑hole position (vision system).

A sample from each batch is torqued to 50 Nm into a test fixture and then pressurized to 350 bar with hydraulic oil at 120°C for 2 hours. Zero leakage is permitted. A laser‑etched batch code on the hex head provides full traceability to material lot, heat treatment batch, and inspection records.

For bulk orders, SANY provides a Certificate of Conformance (CoC) confirming that all 60272895 screws meet dimensional, material, and pressure specifications. Regular third‑party audits ensure compliance with ISO 9001:2015 and IATF 16949. Trust only genuine SANY hollow screws for leak‑free fluid connections.

Field Performance of Genuine SANY Hollow Screw

Field data from SANY equipment operating in Australian mines and Indonesian plantations shows that genuine 60272895 hollow screws maintain a leak‑free seal for over 10,000 operating hours when installed with new sealing washers. The case‑hardened threads resist stripping, and the zinc‑nickel coating prevents corrosion even in high‑humidity environments.

Aftermarket hollow screws often have misaligned cross holes (restricting flow) or lack proper hardening (threads strip easily). Their coatings may be thin, leading to rust and seizure. Genuine SANY screws eliminate these risks. Fleet owners report 95% fewer banjo bolt leaks after switching to genuine screws.

To maximize service life, always replace the sealing washers when the screw is removed. Use a torque wrench set to 50 Nm. Store screws in a sealed bag away from moisture. Following these practices ensures reliable, leak‑free fluid connections.