Knurled Nut Low Profile — Metric Sizes
What Are Knurled Nut Low Profile?
Knurled nut low profile fasteners are flat, thin-bodied threaded nuts with a knurled outer surface for finger-tightening. Compared to high profile variants, the reduced height makes them ideal for applications where vertical clearance is limited — such as shallow panel cutouts, PCB standoff assemblies, and compact instrument enclosures. Despite the lower profile, the knurled surface still provides sufficient grip for secure hand-tightening in low-torque applications.
Key Features and Benefits
- Low-Profile Design: Reduced height fits in shallow spaces where a standard or high-profile nut would protrude or obstruct.
- Knurled Outer Surface: Textured grip enables reliable hand-tightening without additional tools, ideal for frequent adjustments.
- Metric Coarse Thread: Ensures consistent, interchangeable engagement across standard metric fastener systems.
- Compact Footprint: Minimal height makes these suitable for PCB assemblies, panel mounting, and optical equipment.
- Multiple Material Options: Available in stainless steel and brass for diverse application requirements.
Materials and Finishes
- Stainless Steel (A2): Ideal for corrosion-sensitive environments including outdoor and marine applications.
- Brass: Non-magnetic and electrically conductive option for electronics and decorative uses.
- Zinc-Plated Mild Steel: Economical choice for indoor or low-moisture environments.
Standards Compliance
- DIN 467 — Knurled nuts, low form
- ISO metric thread standards
Size Range and Availability
Available in M3 through M12.
Frequently Asked Questions (FAQs)
1. What is a knurled nut low profile used for?
They are used in assemblies with limited vertical clearance — such as PCB mountings, panel assemblies, optical equipment, and instruments requiring frequent manual adjustment.
2. How does low profile differ from high profile knurled nuts?
Low profile nuts are shorter in height, fitting in tighter vertical spaces. High profile nuts offer greater grip surface and higher torque resistance but require more clearance.
3. Can I tighten a low profile knurled nut with a tool?
These are designed for hand-tightening. For higher torque requirements, consider a high profile or standard hex nut instead.
4. What DIN standard applies to knurled nut low profile?
Low profile knurled nuts conform to DIN 467, defining the dimensions and tolerances for this nut form.
5. Are stainless steel low profile knurled nuts suitable for marine environments?
Yes. Stainless steel A2 variants provide excellent corrosion resistance for marine and outdoor applications.
6. What size range do you stock for low profile knurled nuts?
We stock M3 through M12 in low profile knurled nuts.
7. Can these nuts be used with aluminium components?
Yes, with stainless steel variants to avoid galvanic corrosion between dissimilar metals.
8. What thread pitch does M5 low profile knurled nut use?
M5 metric coarse thread has a pitch of 0.8mm.
9. Are these suitable for vibration-prone assemblies?
For vibration-prone environments, we recommend pairing with a thread-locking compound or using a self-locking variant.
10. Do you offer bulk pricing for low profile knurled nuts?
Yes. Contact us for volume pricing and availability.
