SINTS SINTS Precision Metal Components
Lock & Security Components Latch Systems Structural Movement Parts

Steel Lock Latch Bolt with Black Oxidized

Latch-bolt parts do direct mechanical work inside the lock. They need dependable strength, clean movement, and a finish that supports the operating environment without adding unnecessary cost.

SINTS supports this style of latch hardware for OEM lock systems where the buyer needs practical production supply, stable fit, and a finish that suits the final lock assembly.

Steel lock latch bolt with black oxidized
Latch-bolt hardware needs functional geometry, stable movement, and surface treatment matched to the working environment of the lock.

Product overview

This product family covers lock latch-bolt parts used in mechanical movement systems inside door locks and related security hardware. These pieces often have a straightforward visual appearance, but their performance depends on stable geometry, clean assembly fit, and appropriate surface treatment.

Buyers usually evaluate this type of part around mechanical performance first: how it moves, how it wears, and how reliably it can be supplied at production scale. Material and process then follow the actual duty of the latch system.

Typical applications

  • door-lock latch and bolt systems
  • spring-driven lock movement hardware
  • structural pieces in OEM security assemblies
  • compact functional lock parts with protective finishing

Why finish and process both matter

On latch-bolt parts, the finish is not purely decorative. It can influence corrosion resistance, wear behavior, and how well the part fits into the broader lock hardware program. Black oxidized finishing is often chosen where a darker appearance and basic surface protection are both useful.

Depending on geometry and quantity, the part family may be supported by MIM, powder metallurgy, or another appropriate route. In practice, the best choice depends on the shape logic and performance requirements of the latch system.

Materials, finish, and build range

Typical materialsMIM4605, iron, stainless steel, SS304, 17-4PH, and related grades depending on design logic.
FinishBlack oxidized, plating, and related customer-specified treatments.
Weight referenceApprox. 5 to 20 g for the sample part family.
Process optionsMetal injection molding, powder metallurgy, and sintered routes depending on application fit.
MOQ referenceLegacy project reference above 5000 pcs.
PackagingCartons or customer-defined packaging for production delivery.

Project support

RFQs for latch-bolt parts improve when the buyer specifies whether the part is wear-facing, appearance-facing, or purely internal. That helps narrow the right material and finishing combination instead of overengineering the part or underestimating its surface needs.

SINTS can support drawing review for latch-bolt hardware and help determine whether the program should follow a MIM-led route, a PM-led route, or a broader mixed lock-parts solution.

Related lock products

OEM lock spring bolt parts
Related Product

OEM Lock Spring Bolt Parts

Spring-bolt parts for functional lock movement systems and repeat-volume structural supply.

RFQ Guidance

What helps with latch-bolt quotes

Share the drawing, material preference, finish requirement, annual quantity, and any notes about wear or movement. Those details are the fastest way to review whether this latch-bolt part needs a cost-led or performance-led manufacturing route.