Neodymium Countersunk Magnets

Neodymium countersunk magnets are a specialized type of neodymium disc or block magnet featuring a central hole with a tapered shape, allowing for easy mounting with screws. These powerful rare-earth magnets provide strong holding force and are widely used in industrial, woodworking, and mechanical applications. With various sizes, grades, and coatings available, they offer excellent durability and corrosion resistance, making them ideal for securing, fastening, and mounting purposes in construction, furniture, and DIY projects.

Countersunk Ring Magnets

Countersunk Block Magnets

Description

Neodymium (NdFeB) countersunk magnets are high-performance rare-earth magnets designed with a central hole that features a tapered shape, allowing them to be easily mounted with screws. These magnets offer exceptional holding power and are commonly used in applications requiring a secure and flush attachment. Their strong magnetic properties, combined with corrosion-resistant coatings, make them ideal for industrial, mechanical, and DIY uses.

Specifications

Material: Neodymium Iron Boron (NdFeB)
Shape: Disc or Block with Countersunk Hole
Tolerance: ±0.004″ for all dimensions
Grade: N52 (one of the strongest commercially available grades)
Plating/Coating: Nickel (Ni-Cu-Ni), Zinc, or Epoxy for corrosion resistance
Magnetization Direction: Axial or Thickness Direction
Maximum Operating Temperature: ~80°C (for standard N-grade magnets)
Hole Type: Countersunk for flat-head screws

Common Applications

Industrial & Mechanical Uses – Used in machinery, automotive applications, and structural fastening.
Woodworking & Construction – Perfect for cabinet doors, furniture assembly, and panel mounting.
Home & Office Solutions – Ideal for hanging tools, signage, and organizational systems.
DIY & Creative Projects – Used in crafting, magnetic locks, and innovative design applications.

Neodymium Countersunk Magnets

The most popular grades for Neodymium Countersunk Magnets are N42 & N52.

Part No.	Grade	Size
B848CS	N42	1/2″ x 1/4″ x 1/2″ thick Countersunk Thru the Side for #6 screw
B884DCS	N42	1/2″ x 1/2″ x 1/4″ thick, Double Countersunk hole accepts #6 screws
BC82CS-S	N42	3/4″ x 1/2″ x 1/8″ thick, Countersunk hole for a #6 screw, South pole facing out
BC82CS-N	N42	3/4″ x 1/2″ x 1/8″ thick, Countersunk hole for a #6 screw, North pole facing out
BC82CS-P	N42	3/4″ x 1/2″ x 1/8″ thick, Countersunk hole for a #6 screw, Sold by the PAIR
BC84DCS	N42	3/4″ x 1/2″ x 1/4″ thick, Double Countersunk hole accepts #6 screws
BCC4DCS	N42	3/4″ x 3/4″ x 1/4″ thick, Double Countersunk hole accepts #6 screws
BX048CS	N42	1″ x 1/4″ x 1/2″ thick Countersunk 2x Thru the Side for #6 screw
BX082CS-P	N42	1″ x 1/2″ x 1/8″ thick with 2 holes to accept #6 Countersunk screws, Sold by the PAIR
BX082CS-S	N42	1″ x 1/2″ x 1/8″ thick with 2 Countersunk holes to accept #6 screws, South pole facing out
BX082CS-N	N42	1″ x 1/2″ x 1/8″ thick with 2 Countersunk holes to accept #6 screws, North pole facing out
BX088DCS	N42	1″ x 1/2″ x 1/2″ thick, Double Countersunk w/ holes to accept #6 screws
BX0X03DCS	N42	1″ x 1″ x 3/16″ thick, Double Countersunk w/ holes to accept #6 screws
BX0X08DCB	N42	1″ x 1″ x 1/2″ thick Counterbored hole accepts #10 screws
BX0X08DCSPC-BLK	N42	1″ x 1″ x 1/2″ thick, Double Countersunk w/ hole to accept #8 screws, Black Plastic Coated
BX884DCS	N42	1 1/2″ x 1/2″ x 1/4″ thick, Double Countersunk w/ holes to accept #6 screws
BX8C6DCSPC-BLK	N42	1 1/2″ x 3/4″ x 3/8″ thick, Double Countersunk w/ holes to accept #6 screws, Black Plastic Coated
BY084DCS	N42	2″ x 1/2″ x 1/4″ thick, Double Countersunk w/ holes to accept #6 screws
BY0X04DCS	N42	2″ x 1″ x 1/4″ thick, Double Countersunk w/ holes to accept #8 screws
BY0X08DCS	N42	2″ x 1″ x 1/2″ thick, Double Countersunk w/ holes to accept #8 screws
BY0X08DCSPC-BLK	N42	2″ x 1″ x 1/2″ thick, Double Countersunk w/ holes to accept #8 screws, Black Plastic Coated
R422CS-P	N42	1/4″ od x 1/8″ thick with Countersunk hole for #2 screw, Sold by the PAIR
R422CS-S	N42	1/4″ od x 1/8″ thick with Countersunk hole for #2 screw, South pole facing out
R422CS-N	N42	1/4″ od x 1/8″ thick with Countersunk hole for #2 screw, North pole facing out
R422CS-P	N52	1/4″ od x 1/8″ thick with Countersunk hole for #2 screw, Sold by the PAIR
R422CS-S	N52	1/4″ od x 1/8″ thick with Countersunk hole for #2 screw, South pole facing out
R422CS-N	N52	1/4″ od x 1/8″ thick with Countersunk hole for #2 screw, North pole facing out
R622CS-P	N42	3/8″ od x 1/8″ thick with Countersunk hole for #4 screw, Sold by the PAIR
R622CS-S	N42	3/8″ od x 1/8″ thick with Countersunk hole for #4 screw, South pole facing out
R622CS-N	N42	3/8″ od x 1/8″ thick with Countersunk hole for #4 screw, North pole facing out
R622CS-P	N52	3/8″ od x 1/8″ thick with Countersunk hole for #4 screw, Sold by the PAIR
R622CS-S	N52	3/8″ od x 1/8″ thick with Countersunk hole for #4 screw, South pole facing out
R622CS-N	N52	3/8″ od x 1/8″ thick with Countersunk hole for #4 screw, North pole facing out
R824	N42	1/2″ od x 1/8″ id x 1/4″ thick
R822CS-P	N42	1/2″ od x 1/8″ thick with Countersunk hole for #4 screw, Sold by the PAIR
R822CS-S	N42	1/2″ od x 1/8″ thick with Countersunk hole for #4 screw, South pole facing out
R822CS-N	N42	1/2″ od x 1/8″ thick with Countersunk hole for #4 screw, North pole facing out
R822CS-P	N52	1/2″ od x 1/8″ thick with Countersunk hole for #4 screw, Sold by the PAIR
R822CS-S	N52	1/2″ od x 1/8″ thick with Countersunk hole for #4 screw, South pole facing out
R822CS-N	N52	1/2″ od x 1/8″ thick with Countersunk hole for #4 screw, North pole facing out
RA22CS-P	N42	5/8″ od x 1/8″ thick with Countersunk hole for #6 screw, Sold by the PAIR
RA22CS-S	N42	5/8″ od x 1/8″ thick with Countersunk hole for #6 screwSouth pole facing out
RA22CS-N	N42	5/8″ od x 1/8″ thick with Countersunk hole for #6 screw, North pole facing out
RA22CS-P	N52	5/8″ od x 1/8″ thick with Countersunk hole for #6 screw, Sold by the PAIR
RA22CS-S	N52	5/8″ od x 1/8″ thick with Countersunk hole for #6 screwSouth pole facing out
RA22CS-N	N52	5/8″ od x 1/8″ thick with Countersunk hole for #6 screw, North pole facing out
RC22CS-P	N42	3/4″ od x 1/8″ thick with Countersunk hole for #8 screw, Sold by the PAIR
RC22CS-S	N42	3/4″ od x 1/8″ thick with Countersunk hole for #8 screwSouth pole facing out
RC22CS-N	N42	3/4″ od x 1/8″ thick with Countersunk hole for #8 screw, North pole facing out
RC22CS-P	N52	3/4″ od x 1/8″ thick with Countersunk hole for #8 screw, Sold by the PAIR
RC22CS-S	N52	3/4″ od x 1/8″ thick with Countersunk hole for #8 screwSouth pole facing out
RC22CS-N	N52	3/4″ od x 1/8″ thick with Countersunk hole for #8 screw, North pole facing out
RC24DCS	N42	3/4″ od x 0.194″ id x 0.349″ id x 1/4″ thick, Double Countersunk hole accepts #8 screws
RC24DCSPC-BLK	N42	3/4″ od x 0.136″ id x 0.242″ id x 1/4″ thick, Double Countersunk hole accepts #4 screws, Black Plastic Coated
RE22CS-P	N42	7/8″ od x 1/8″ thick with Countersunk hole for #8 screw, Sold by the PAIR
RE22CS-S	N42	7/8″ od x 1/8″ thick with Countersunk hole for #8 screwSouth pole facing out
RE22CS-N	N42	7/8″ od x 1/8″ thick with Countersunk hole for #8 screw, North pole facing out
RE22CS-P	N52	7/8″ od x 1/8″ thick with Countersunk hole for #8 screw, Sold by the PAIR
RE22CS-S	N52	7/8″ od x 1/8″ thick with Countersunk hole for #8 screwSouth pole facing out
RE22CS-N	N52	7/8″ od x 1/8″ thick with Countersunk hole for #8 screw, North pole facing out
RX033CS-P	N42	1″ od x 3/16″ thick Countersunk hole accepts #10 Countersunk screw, Sold by the PAIR
RX033CS-S	N42	1″ od x 3/16″ thick Countersunk hole accepts #10 Countersunk screwSouth pole facing out
RX033CS-N	N42	1″ od x 3/16″ thick Countersunk hole accepts #10 Countersunk screw, North pole facing out
RX033CS-P	N52	1″ od x 3/16″ thick Countersunk hole accepts #10 Countersunk screw, Sold by the PAIR
RX033CS-S	N52	1″ od x 3/16″ thick Countersunk hole accepts #10 Countersunk screwSouth pole facing out
RX033CS-N	N52	1″ od x 3/16″ thick Countersunk hole accepts #10 Countersunk screw, North pole facing out
RX034DCSPC	N42	1″ od x 0.194″ id x 0.349″ id x 1/4″ thick, Double Countersunk hole accepts #6 screws, Black Plastic Coated
RX034DCSPC-BLK	N42	1″ od x 0.194″ id x 0.349″ id x 1/4″ thick, Double Countersunk hole accepts #6 screws, Black Plastic Coated
RX038DCB	N42	1″ od x 0.195″ id x 0.375″ id x 1/2″ thickSized to accept #10 screwReversible
RX038DCB	N52	1″ od x 0.195″ id x 0.375″ id x 1/2″ thickSized to accept #10 screwReversible
RX434DCS	N42	1 1/4″ od x 0.194″ id x 0.349″ id x 1/4″ thick, Double Countersunk hole accepts a #8 screw
RX436DCSPC	N42	1 1/4″ od x 0.221″ id x 0.402″ id x 3/8″ thick, Double Countersunk hole accepts #10 screws, Black Plastic Coated
RX436DCSPC-BLK	N42	1 1/4″ od x 0.221″ id x 0.402″ id x 3/8″ thick, Double Countersunk hole accepts #10 screws, Black Plastic Coated
RX836DCS	N42	1 1/2″ od x 0.221″ id x 0.402″ id x 3/8″ thick, Double Countersunk hole accepts a #10 screw
RY0X04	N42	2″ od x 1″ id x 1/4″ thick, 2″ od x 1″ id
RY04Y0	N42	2″ od x 1/4″ id x 2″ thick, 2″ od x 1/4″ id
RY04Y0DIA	N42	2″ od x 1/4″ id x 2″ thick, 2″ od x 1/4″ id
RZ0Y0X0	N42	3″ od x 2″ id x 1″ thick, 3″ od x 2″ id