Low Head Socket Head Cap Screws
DIN 7984 Stainless Steel Low Head Socket Screws for Compact Machinery & Equipment
DIN 7984 Low Head Socket Head Cap Screws combine a reduced-height cylindrical head, internal hex drive and metric machine thread for machinery where conventional socket-head clearance is limited. The head remains above the component without requiring a countersink, while DIN 7984:2022-03 defines reduced loadability as an inherent design consideration.
Product Overview
DIN 7984 provides a lower head profile than a conventional Socket Head Cap Screw, supporting moving-component clearance, restricted equipment height, machine-cover clearance and compact mechanical packaging without machining a countersink.
The thinner head contains less material, while the internal hex socket occupies part of the remaining section. DIN 7984 therefore has reduced loadability and must not be assumed to provide DIN 912 head performance simply because material or property class is similar.
For quotations, specify DIN 7984, diameter, pitch, under-head length, material, stainless grade or steel property requirement, full or partial thread, finish, mating thread, clearance, quantity and drawing where required.
Technical Specifications
Low Head Clearance, Reduced Loadability & Socket Engagement
Stainless Steel, Steel & Size Options
Thread, Length & OEM Manufacturing
Metric coarse is primary. Metric fine, full or partial thread and longer sizes depend on DIN requirements, diameter and drawing.
Drawing-controlled head diameter/height, socket, thread and finish are custom when they differ from DIN 7984. UNC / UNF versions are custom or other-standard products.
Provide DIN 7984 or custom, diameter, pitch, under-head length, material, property requirement, thread length, finish, quantity and drawing/sample.
Inner bags, boxes, export cartons, wooden pallets, customer labels, part numbers and authorized private-label packaging.
Head, Socket & Dimensional Quality
Inspection may verify diameter, pitch, thread length, GO / NO-GO fit, under-head length, head diameter, head height, flatness, cylindrical profile, concentricity, socket geometry and material. Mechanical testing follows actual DIN, material and customer requirements; no unsupported proof load, torque or clamp load is published.
Applications
Low-profile internal-hex fastening where machinery clearance is limited.
Reduced vertical projection where surrounding component clearance is limited.
Frames, actuators and brackets needing low-profile internal-hex fastening.
Fixtures where conventional socket heads may interfere with workpieces.
Additional clearance beneath guides and adjacent moving components.
Defined DIN 7984 dimensions, material, thread and low-head geometry.
Frequently Asked Questions
What is DIN 7984?
DIN 7984 specifies Hexagon Socket Head Cap Screws with a low cylindrical head and reduced loadability for limited-clearance machinery.
What is the difference between DIN 7984 and DIN 912?
DIN 7984 has a substantially lower cylindrical head and reduced loadability; DIN 912 uses a conventional taller socket-head geometry.
What is the difference between DIN 7984 and DIN 7991?
DIN 7984 remains above the surface without a countersink. DIN 7991 uses a 90° countersunk head for flush or near-flush seating.
What sizes can VALTOR supply?
The family covers M3–M24. Common commercial lengths are around 6–100 mm, with longer sizes for suitable larger diameters and specifications.
Why does DIN 7984 have reduced loadability?
The lower head contains less material, while the internal hex socket occupies part of the remaining head section, limiting head loadability.
Related Products
Share diameter, pitch, under-head length, material, property requirement, clearance, quantity and drawing with VALTOR.