Design Essence And Reliable Connection Solution Of Slotted Cheese-shaped Head Bolts

Slotted Cheese-shaped Head Bolts are standard threaded fasteners with a cylindrical head and a straight slot at the top. Manufactured according to national standard GB/T 65-2016, they are suitable for mechanical assembly connections. Thread sizes range from M1.6 to M10, lengths from 1.4mm to 79.05mm, and materials include carbon steel, stainless steel, and non-ferrous metals. Mechanical performance grades up to A2-70 are used. This screw uses a simplified drawing method where the head diameter is proportional to the nominal diameter; the engaging portion in assembly drawings must be drawn according to external thread specifications.

The head of the Slotted Cylindrical Head Fasteners is cylindrical with a single straight slot. The slot depth is proportional to the screw diameter. The ratio of nominal diameter (d) to head diameter (dk) is 1:1.6 to 1:2.0, and the head height (k) is 0.6d to 0.8d. The national standard stipulates that the slot width must meet the matching dimensions of a standard screwdriver, and the bottom of the slot must maintain a rounded transition to reduce stress concentration.

The thread machining range conforms to the GB/T 193 standard. When the nominal length exceeds the dimension indicated by the dotted line, a full thread must be machined. The head diameter tolerance is controlled within ±0.1mm, and the groove depth tolerance is ±0.05mm. 

Primarily used for through-hole assembly connections, tightening is achieved by applying torque with a screwdriver. In mechanical engineering drawings, these Machine Screws with Slotted Cylindrical Heads are widely used in medium-load scenarios such as box cover fastening and bearing end cap fixing. Compared to bolt connections, they offer advantages such as compact structure and small installation space.

We provide flexible customization services to meet the individual needs of different customers: Shank length, thread specifications, and head size can be adjusted according to specific application scenarios. We support customization of special materials and special surface treatments, and can also adapt to the needs of customers' automated assembly lines, optimizing Slotted Head Cylindrical Screws structure design and reducing material jam risks. With a factory-direct supply model, we can achieve rapid response from R&D design and sample prototyping to mass production, shortening delivery cycles and eliminating intermediate costs, providing customers with cost-effective product solutions.

Whether you prioritize the stability and reliability of standard parts or require customized products to suit specific scenarios, our Slotted Cheese-shaped Head Bolts meet the core needs of customers across various industries with strict standard compliance, superior performance, and flexible service models. Leveraging years of experience in metal parts manufacturing and a comprehensive production management system, we consistently follow industry trends, continuously optimizing product performance to provide robust fastener support for the stable operation and high-quality development of downstream enterprises' equipment.